Knife switches are most closely associated with horror films set in the 1800s, especially in underground laboratories such as the one depicted in Mary Shelley’s novel Frankenstein. This double knife-double throw switch allows for up to two circuits to be live or to be turned off. Simply connect the ends of the circuit to the two metal screw contacts on the switch and instantly you have mechanical way of breaking and connecting a circuit.
These goggles meet the American National Standards Institution (ANSI Z87.1) and Canadian Standards (CSA Z94.3) regulations.
Highly durable lab apron made of rubberized cloth is impermeable and easy to clean, perfect for all manner of lab or classroom experiments
Extra thick medical examination gloves - 60mil. Great for extra protection.
These ear plugs are made of self adjusting foam that provides a comfortable, low pressure fit and excellent sound filtration.
Extra-large nitrile exam gloves designed and manufactured for superior protection against viral, bacterial, and certain chemical hazards.
Recommended for protection against chemical splashes. A must have for every young chemist!
Discover how solar cells make electricity with this awesome kit!
Check out this high-quality gyroscope!
This science kit is an essential introduction to physics knowledge!
Every kid needs one of these spheres!
NEW 2016 DESIGN! This hip red tee features Pi to 1000 decimal places on an ultra soft 100% cotton shirt.
This black scorpion specimen is great for the classroom setting!
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