PSV 207. 5 point breakaway. Expandable. Polyester blue mesh on top, hi-viz lime solid fabric on bottom. Hook & loop front closure. One pen pocket on left front chest. 2 large int. waist pocket with hook & loop closure. Mic tabs.
PSV 207. 5 point breakaway. Expandable. Polyester blue mesh on top, hiviz lime solid fabric on bottom. Hook & loop front closure. One pen pocket on left front chest. 2 large int. waist pocket with hook & loop closure. Mic tabs.
PSV 207. 5 point breakaway. Expandable. Polyester blue mesh on top, hi-viz lime solid fabric on bottom. Hook & loop front closure. One pen pocket on left front chest. 2 large int. waist pocket with hook & loop closure. Mic tabs.
Unmounted, high-quality silvered glass. Focal length 150 mm.
Unmounted, high-quality silvered glass. Focal length 150 mm.
Unmounted, high-quality optical glass with ground edges. Set includes 6 lenses: 1. Double convex 2. Plano convex 3. Concave/convex 4. Double concave 5. Plano concave 6. Convex/concave.
Unmounted, high-quality optical glass with ground edges. Set includes 6 lenses: 1. Double convex 2. Plano convex 3. Concave/convex 4. Double concave 5. Plano concave 6. Convex/concave.
• 57" high flag/cone combinations
• 16" Flags can be removed to be used as hand-held flags for traffic control
• Cones are 28" high with a 14.5" square base
• Cone is made with 100% PVC polyvinyl chloride (contains no phthalates)
• Cones have UV inhibitors for resistance to fading
• Good visibility under all weather condition
• Cone will not mar floors.
These colorful flag/cone combinations are 57" high. The 16" flags can be removed from the cone adapter to be used as hand-held flags for traffic control. Cones are 28" high. The cones are constructed of brilliant fluorescent orange vinyl. Non-porous, dirt-resistant surface can be easily cleaned. Will not mar floors.
Red and White umbrella with automatic opening and 58" Large vented nylon canopy. Umbrella case includes a shoulder strap. Sturdy 2-section hexagonal folding metal shaft. Fiberglass ribs. Gentle foam handle with wrist strap.
Red and White umbrella with CROSSING GUARD emblem, automatic opening and 58" Large vented nylon canopy. Umbrella case includes a shoulder strap. Sturdy 2-section hexagonal folding metal shaft. Fiberglass ribs. Gentle foam handle with wrist strap.
Set contains twenty each of 1 g and 5 g, ten 10 g, four 20 g, two 100 g, and one each of 500 g and 1000 g weights. Stackable, color-coded weights come in a plastic storage box. Ages 8-13
Set contains twenty each of 1 g and 5 g, ten 10 g, four 20 g, two 100 g, and one each of 500 g and 1000 g weights. Stackable, color-coded weights come in a plastic storage box. Ages 8-13
For 18" and 28" cones. Reflective high tack adhesive backed cone collars made from tough, durable, and flexible UV stabilized polyester sheeting. Three times brighter than previous cone collars and comply with FHA requirements. Cone not included.
Ready2Use Next Generation Folding, Rolling, Quick Loading, A-frame Sandwich Board Style Sidewalk Sign with changeable message boards. Patented and patent pending features for unmatched user friendliness, portability, and affordability. Displays curved sign panels for maximum visibility and includes Side Support Arms to keep unit from spreading open or closing in high winds. Water filled for stability; can withstand freezing. Just Grip-Tip-Roll to move in or out without lifting/carrying to keep user clean and dry; can be moved folded or open. Resists winds up to 30mph. Displays up to 7 lines of copy on each side.
Includes
2 - /24"x36"x4mm white sign panels with tracks on one side of each board
314-4" letters, numbers, and symbols
22 - 8"numbers
2-9" SALE/Special headers
Ready2Use Next Generation Folding, Rolling, Quick Loading, A-frame Sandwich Board Style Sidewalk Sign with changeable message boards. Patented and patent pending features for unmatched user friendliness, portability, and affordability. Displays curved sign panels for maximum visibility and includes Side Support Arms to keep unit from spreading open or closing in high winds. Water filled for stability; can withstand freezing. Just Grip-Tip-Roll to move in or out without lifting/carrying to keep user clean and dry; can be moved folded or open. Resists winds up to 30mph. Displays up to 7 lines of copy on each side.
Includes
2 - /24"x36"x4mm white sign panels with tracks on one side of each board
314-4" letters, numbers, and symbols (Black letters and Red Numbers)
Blood typing has always been and important biology exercise introducing a variety of key areas including immunology. Mainly genetics, blood banking, and forensics. Concern over Aids along with a general trend away from invasive" laboratory work has, for many schools, resulted in the elimination of this vital exercise. The ABO Blood Simutype Kit solves all of these problems. Using artificial bloods and sera that simulate actual blood typing, students follow exactly the procedure that would be used to type a blood specimen and obtain results that closely approximate real blood typing. Each student determines the type of one blood sample, A,B,O, and AB types are all included. From their results, students use genetic consideration to settle paternity questions. They also determine possible blood doners for each blood type.
Blood typing has always been and important biology exercise introducing a variety of key areas including immunology. Mainly genetics, blood banking, and forensics. Concern over Aids along with a general trend away from invasive" laboratory work has, for many schools, resulted in the elimination of this vital exercise. The ABO Blood Simutype Kit solves all of these problems. Using artificial bloods and sera that simulate actual blood typing, students follow exactly the procedure that would be used to type a blood specimen and obtain results that closely approximate real blood typing. Each student determines the type of one blood sample, A,B,O, and AB types are all included. From their results, students use genetic consideration to settle paternity questions. They also determine possible blood doners for each blood type.
AC Adapter For Ohaus Scout Scales
AC Adapter For Ohaus Scout Scales
This unique hand generator is an easy yet effective way to teach how AC and DC electricity is produced. Banana plugs can be inserted into the different connectors to change from AC to DC electricity. The unit has a clear base for easy demonstration of connections. Includes an activity guide. Dimensions: 10" x 7" x 9".
This unique hand generator is an easy yet effective way to teach how AC and DC electricity is produced. Banana plugs can be inserted into the different connectors to change from AC to DC electricity. The unit has a clear base for easy demonstration of connections. Includes an activity guide. Dimensions: 10" x 7" x 9".
fischertechnik Accu Set provides fast, reliable charging of your rechargeable NiMH battery (included). This high-powered NiMH Accu Pack also features a microcontroller to protect from overcharging. With this short-circuit protection, the charger is able to recharge your battery in two hours - at the most (8.4V, 1500mAh)! Keep your fischertechnik designs moving with the fischertechnik Accu Set.
In order to program and keep your fischertechnik designs moving, you need to provide an adequate powersource. The fischertechnik Accu Set offers builders a NiMH battery and a reliable charger.
Save time and money by incoporating the Accu Set into your fischertechnik models. With short-circuit protection and a max charge time of only two hours, the Accu Set is a durable solution to your battery needs. This set is especially useful to classroom or home environments with many young engineers constantly using the electronic fischertechnik sets. The Accu Set helps keep these models charged and ready to go!
Acme official's brass whistle. Very durable top quality. 1 3/4" long.
Acme Thunderer Whistle is compressed, molded plastic for great durability.
This burette has a clear acrylic body and leak proof stopcock with a self lubricating PTFE plug. Each burette is individually calibrated for maximum accuracy. Acrylic body is resistant to dilute mineral acids and bases except Hydrofluoric Acid and Ammonium Hydroxide. It can be used with pHs ranging from 1 to 14 and with up to 5% weight per weight of acids or 30% of bases. Graduations are at 0.1 ml.
This burette has a clear acrylic body and leak proof stopcock with a self lubricating PTFE plug. Each burette is individually calibrated for maximum accuracy. Acrylic body is resistant to dilute mineral acids and bases except Hydrofluoric Acid and Ammonium Hydroxide. It can be used with pHs ranging from 1 to 14 and with up to 5% weight per weight of acids or 30% of bases. Graduations are at 0.1 ml.
This burette has a clear acrylic body and leak proof stopcock with a self lubricating PTFE plug. Each burette is individually calibrated for maximum accuracy. Acrylic body is resistant to dilute mineral acids and bases except Hydrofluoric Acid and Ammonium Hydroxide. It can be used with pHs ranging from 1 to 14 and with up to 5% weight per weight of acids or 30% of bases. Graduations are at 0.1 ml.
This burette has a clear acrylic body and leak proof stopcock with a self lubricating PTFE plug. Each burette is individually calibrated for maximum accuracy. Acrylic body is resistant to dilute mineral acids and bases except Hydrofluoric Acid and Ammonium Hydroxide. It can be used with pHs ranging from 1 to 14 and with up to 5% weight per weight of acids or 30% of bases. Graduations are at 0.1 ml.
This burette has a clear acrylic body and leak proof stopcock with a self lubricating PTFE plug. Each burette is individually calibrated for maximum accuracy. Acrylic body is resistant to dilute mineral acids and bases except Hydrofluoric Acid and Ammonium Hydroxide. It can be used with pHs ranging from 1 to 14 and with up to 5% weight per weight of acids or 30% of bases. Graduations are at 0.1 ml.
This burette has a clear acrylic body and leak proof stopcock with a self lubricating PTFE plug. Each burette is individually calibrated for maximum accuracy. Acrylic body is resistant to dilute mineral acids and bases except Hydrofluoric Acid and Ammonium Hydroxide. It can be used with pHs ranging from 1 to 14 and with up to 5% weight per weight of acids or 30% of bases. Graduations are at 0.1 ml.
25 mm diameter x 25 mm height.
25 mm diameter x 25 mm height.