This high visibility, 6-mil, pressure-sensitive tape conforms to OSHA marking requirements. Alternating checkerboard pattern in a variety of colors. As an added feature, these self-wound printed tapes with permanent adhesive are protected with a clear overlamination. Comes in 2 inches wide x 36 yard rolls. Made in the USA.
This basket, with wide, net like structure on all sides is useful for draining different laboratory apparatus after washing them. Made of polypropylene, this tray can be autoclaved. Dimensions 16" wide x 16" deep x 4" high.
This basket, with wide, net like structure on all sides is useful for draining different laboratory apparatus after washing them. Made of polypropylene, this tray can be autoclaved. Dimensions 16" wide x 16" deep x 4" high.
It is the ideal teaching tool to introduce elementary and middle school students to the science of meteorology and has a pivoting beam that provides accuracy to 0.5 gram divisions. The interchangeable red square pans are easily removable for pouring, cleaning, and storage. With a capacity of 2000 grams, mass measurements can be achieved for small items such as paper clips, marbles and coins as well as heavier objects such as books. Pan dimensions: 5.5" (14cm)W x 5.5" (14cm)H
It is the ideal teaching tool to introduce elementary and middle school students to the science of meteorology and has a pivoting beam that provides accuracy to 0.5 gram divisions. The interchangeable red square pans are easily removable for pouring, cleaning, and storage. With a capacity of 2000 grams, mass measurements can be achieved for small items such as paper clips, marbles and coins as well as heavier objects such as books. Pan dimensions: 5.5" (14cm)W x 5.5" (14cm)H
Features flat countersunk bottom, with a double-ended hooked rod through the middle. Can be used on balance pans, as well as hooked in tandem for lever arm studies. Made of polished brass.
Aluminum die cast clamp for holding 2 pieces of apparatus in 3 positions: right angles, parallel or vertical. Holds rods to 1/2" in diameter.
Aluminum die cast clamp for holding 2 pieces of apparatus in 3 positions: right angles, parallel or vertical. Holds rods to 1/2" in diameter.
Good quality, one-piece plastic frame. Glass lens.
50mm magnifying glass with glass lens molded into a high quality unibody plastic frame. 2.5x magnification.
Don't miss the best meteor shower of the year. Discover the figure of the boy, "Jack," on the moon. Quickly locate favorite constellations such as the Big and Little Dipper, Orion, Draco, and Cassiopeia. With Mark R. Chartrand's Night Sky: A Guide to Field Identification, now you can! No other guide makes it easier for the casual stargazer or beginning astronomer to enjoy the splendors of the universe and appreciate the laws that govern the sun, moon, planets, and stars.
• Ideal for viewing with the naked eye, binoculars, or small telescopes
• Seasonal sky maps for each region of the United States
• Expert help photographing celestial events
• Solar eclipse timetable and safe viewing tips
• 280 pages, softcover, 4 1/2" x 7 1/2" size
This 12" x 18" sign is screened on both sides. Constructed of nylon reinforced vinyl over a wire frame. Great for indoor or outdoor use. Sign comes with cone attachment and a 28" high impact polyethylene cone. 12" x 18" Sign. High Visibility. Interchangeable. Screened on Both Sides. Includes 28" Cone & Attachment. Overall Height is 56".
• Instant identification of staff and aides.
• Required in many states for emergency use
• Constructed of nylon reinforced vinyl
• Elastic straps to enable the band to fit most size arm
The I.D. arm bands are required in many states for emergency use for instant identification of staff and aides. These arm bands are constructed of nylon reinforced vinyl with elastic straps to enable the band to fit most size arm.
Safe-Step is a long lasting, adhesive backed tape designed especially for application in high traffic areas where slippery or dangerous surfaces may cause accidents. A rugged aluminum oxide grit surface is bonded to the tape and is impervious to water, grease, oil, detergents and solvents. Available in 2 Sizes and 4 Colors.
• 160 degree viewing area
• Suitable for almost any security or safety application
• Acrylic lenses with good weather resistance
• Impact resistant with high reflectivity
• Mounting hardware and instructions included
• Recommended for viewing areas up to 18 feet
160 degree viewing area. Suitable for almost any security or safety application. Acrylic lenses with good weather resistance and impact resistance with high reflectivity. Mounting hardware is included along with easy to follow instructions. Recommended for viewing areas up to 18 feet.
Zinc plated steel extension rings. Rod diameter is 5/16" overall length is 12".
Zinc plated steel extension rings. Rod diameter is 5/16" overall length is 12".
Porcelain. Glazed inside and outside except bottom outside surface.
Porcelain. Glazed inside and outside except bottom outside surface.
Kit includes 1 each of Test Tube Rack for 6, Test Tube Brush, Test Tube Clamp, Crucible Tongs, Lab Scoop, 6" Spatula and Forceps.
Kit includes 1 each of Test Tube Rack for 6, Test Tube Brush, Test Tube Clamp, Crucible Tongs, Lab Scoop, 6" Spatula and Forceps.
Large, easy to read numbers and graduations. -40 degreesC to +50 degreesC.
Large, easy to read numbers and graduations. -40 degreesC to +50 degreesC.
• Deluxe set includes everything needed to teach liquid measurement and equivalencies
• Students will recognize, measure and estimate liquid volumes
• Set includes 5 Measuring Jars, 3 Liquid Measurers, 5 Measuring Cups, and 6 Measuring Spoons
• All pieces are clearly marked and made of durable plastic
• Ages 5+
This deluxe set is the perfect sized classroom set for learning measurement equivalents. Students practice customary capacities, liquid measurement and metric conversions with suggested activities included. Made of durable plastic, each piece is clearly marked to provide years of use. Includes teacher's guide. Set includes a liquid measuring cup (8oz/250ml), pint (16oz/500ml), quart (32oz/1000ml), standard spoons, 1 teaspoon,1 tablespoon, standard cups, measuring jars with gill, pint, quart, half-gallon, gallon (metric 100ml-3000ml)
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
Black bristle. Wooden handle. Tufted end. 3 1/4" brush diameter. 13" overall length.
Black bristle. Wooden handle. Tufted end. 3 1/4" brush diameter. 13" overall length.
For rods up to 1/2" diameter.
4 inch cast iron, zinc-plated support ring with boss head clamp and thumbscrew. Distance from support to center of ring is 4-1/2 inches. For rods up to 1/2 inch in diameter.
This 27 inch x 36 inch adult size apron is for efficiency and cleanliness. Reinforced at points of strain (6 mil). Quality tapes at waist and neck.
Pure latex gum tubing. A clear amber color. Flexible, with long life under constant use. 3/32" wall thickness.
Stamped steel base. Black enamel finish. Zinc plated, detachable rod. 6" x 9" base
Stamped steel base. Black enamel finish. Zinc plated, detachable rod. 6" x 9" base
Stamped steel base. Black enamel finish. Zinc plated, detachable rod. 4" x 6" base
Stamped steel base. Black enamel finish. Zinc plated, detachable rod. 4" x 6" base
This is the perfect "carry-with-you" magnifier-microscope. Just 5 1/4" x 1 3/4" x 3/4" with a built-in light source and optics to let you see objects 30 times their actual size. Uses two "AA" batteries (not incl.) and features a center focus wheel for precise one-hand operation. Ideal for inspecting gems, photos, stamps, coins, and learning about plants and insects.
This is the perfect "carry-with-you" magnifier-microscope. Just 5 1/4" x 1 3/4" x 3/4" with a built-in light source and optics to let you see objects 30 times their actual size. Uses two "AA" batteries (not incl.) and features a center focus wheel for precise one-hand operation. Ideal for inspecting gems, photos, stamps, coins, and learning about plants and insects.