Strong plastic construction. These Buzzers are an essential electrical part for use in Physics electrical circuits and Sound experiments and other general lab use. Buzzer dia. 1.15" (29mm) x 0.58" (14.8mm) thick. Base 1.89" (48mm) long, with two holes 0.13" (3.48mm) dia. for mounting. Connecting wire 4" (100mm) long.
Strong plastic construction. These Buzzers are an essential electrical part for use in Physics electrical circuits and Sound experiments and other general lab use. Buzzer dia. 1.15" (29mm) x 0.58" (14.8mm) thick. Base 1.89" (48mm) long, with two holes 0.13" (3.48mm) dia. for mounting. Connecting wire 4" (100mm) long.
Consists of an inner aluminum vessel 75mm x 50 mm, height x diameter, and an outer aluminum vessel 100 mm x 75 mm, height x diameter, with a bakelite cover with two terminals, which are cross-drilled at their lower ends and are fitted with a heating coil, the upper ends are fitted with standard sockets for electrical connections. The bakelite cover has holes for thermometer and a stirrer. Supplied complete with stirrer but without thermometer.
Consists of an inner aluminum vessel 75mm x 50 mm, height x diameter, and an outer aluminum vessel 100 mm x 75 mm, height x diameter, with a bakelite cover with two terminals, which are cross-drilled at their lower ends and are fitted with a heating coil, the upper ends are fitted with standard sockets for electrical connections. The bakelite cover has holes for thermometer and a stirrer. Supplied complete with stirrer but without thermometer.
Includes everything you'll need to show that electricity can act very much like a magnet. One large nail, one five-foot piece and one 1 1/4-foot piece of plastic insulated wire with end connectors, one knife-edge switch, two screws, one 3" x 4" x 1" wooden block and complete instructions. Battery not included.
This 60" plastic tape has inches on one side and centimeter/ millimeter scale on the other.
This 60" plastic tape has inches on one side and centimeter/ millimeter scale on the other.
Standard Conical shaped flasks, in seven sizes, borosilicate (heat resistant) glass, marked with graduations for approximate volumes, used in the laboratory for mixing, storing and heating of liquids. Stopper Size: 1 (not included)
Standard Conical shaped flasks, in seven sizes, borosilicate (heat resistant) glass, marked with graduations for approximate volumes, used in the laboratory for mixing, storing and heating of liquids. Stopper Size: 1 (not included)
Porcelain. Glazed inside and outside except bottom outside surface.
Porcelain. Glazed inside and outside except bottom outside surface.
Porcelain. Glazed inside and outside except bottom outside surface.
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".
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".
Zinc plated steel extension rings. Rod diameter is 5/16" overall length is 12".
Box of 100, Smooth. Medium Flow rate and retention. Suitable for 95% of laboratory qualitative studies.
This borosilicate (heat resistant) glass conical shaped flask with side arm is used in filtration processes.
100 ml Flask uses a size 4 stopper
150 ml Flask uses a size 5 stopper
250 ml Flask uses a size 6.5 stopper
500 ml Flask uses a size 6.5 stopper
4 1/2" straight fine point with guide pin.
This Choking Poster (updated for 2013), explains in great detail how to help an adult who is choking in a step by step process. This first aid poster breaks down instructions on how to help a choking victim. If a victim is conscious, this poster illustrates in great detail instructions for following 3 steps to provide emergency help. If a victim becomes unconscious, there are instructions to follow steps 1-4. Illustrations are sharp and colorful; the text is large making reading easy. This adult choking first aid poster is critical to have on hand at any restaurant, school, child care facility, or business. 18" x 24".
The Child Choking Poster by Bruce Algra (years 1-8), updated for 2017, shows and explains how to help a child who is choking in a step by step easy to follow process. The top of the poster shows the 3 critical steps to take when the child is choking and conscious. The bottom of the poster shows what to do if the child becomes unconscious (or is unconscious already). Illustrations are sharp, colorful and text is large to make it easy to read. This is an important life saving reference for restaurants, schools, child care facilities, business, or any place children are present. 18" x 24".
Hi-Viz lime women's fitted vest. Contoured waist, vents at hips, repositioned horizontal tape. 100% polyester tricot. Zipper front closure, 2 exterior waist pockets. Sizes SM - 5X. Meets ANSI/ISEA 107-2015 requirements.
| M | 45.6" x 26.75" |
| L | 48" x 26.75" |
| XL | 50" x 26.75" |
| 2X | 52" x 27.75" |
| 3X | 53.5" x 27.75" |
| 4X | 55.5" x 28.75" |
| 5X | 57.5" x 28.85" |
• Multi-function flash settings
• Elastic arm band included
• Weather sealed case
• Requires 2 "AA" Batteries (not included).
• Multi-function flash settings
• Elastic arm band included
• Weather sealed case
• Requires 2 "AA" Batteries (not included).
• Replacement light for SA916M
Available lighting styles:
- All LEDs on
- All LEDs flashing fast
- All LEDs flashing slow
- LEDs flashing in left-to-right pattern
- LEDs flashing in right-to-left pattern
- LEDs flashing fast in left-to-right pattern
- LEDs flashing in back-and-forth pattern
- All LEDs off
Black bristle. Double tufted end. 1 3/4" brush diameter. 16" overall length.
Black bristle. Double tufted end. 1 3/4" brush diameter. 16" overall length.
• Injection molded traffic cones don’t stick together
• Patented interlocking design secures fluorescent portion of hazard cone to recycled black base
• Brilliant fluorescent lime cones with UV inhibitors to resist fading
• Superior flexibility in heat and cold
• Bounce back from an impact
• Recycled black base traffic cones look clean despite heavy use
• Available in 3 sizes
18" high with 11" square base
28" high with 14" square base
36" high with 14" square base
These Injection molded traffic cones won't stick together! Patented interlocking design secures fluorescent portion of hazard cone to recycled black base. Brilliant fluorescent lime cones with UV inhibitors to resist fading. Superior flexibility in heat and cold - PVC is better than rubber traffic cones and pylons, since it can instantly bounce back from an impact. The recycled black base keeps your cone looking clean despite heavy use, being run over, and tar stains!
Fluorescent green knit cotton/polyester gloves with black PVC dots on both sides. One size fits all.
Replacement bulb for microscopes with fluorescent illumination. 5W, 110V
Replacement bulb for microscopes with fluorescent illumination. 5W, 110V
High visibility orange vinyl with Silver 3M Scotchlite Reflective Material . High visibility day or night. Fully Adjustable to Fit Men or Women. Waist size 30" to 45" and two over the shoulder straps 23.5" to 46.5".
Fold-up safety floor signs make your "caution" clear on all four sides. These patent-pending signs come with an innovative device called the Lockin' Arm" that lets you place them quickly and easily with a couple of quick flicks, locking the 25" high sign solidly into place to prevent collapsing. In addition signs are made of large, molded plastic panels that offer an easy-to-read message area. Virtually indestructible. 1 1/2" thickness allows for easy space saving storage.