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 mini single knife switch allows for a circuit to be live or to be turned off. Simply connect the ends of the circuit to the metal screw contacts on the switch and instantly you have a mechanical way of breaking and connecting a circuit.
Great exam quality Nitrile gloves in size SMALL.
These disposable surgical-style earloop face masks conform to the ASTM F1862 Level 1 clasification. Box of 50.
This is a smart value 200 gloves box of Large Nitrile exam gloves.
Box of 100 X-SMALL nitrile exam gloves.
These disposable face shields are popular with health professionals, dentists, EMTs, etc. They act as a full-face barrier protection against body fluids.
Highly durable lab apron made of rubberized cloth is impermeable and easy to clean, perfect for all manner of lab or classroom experiments
Cool new Pi tee featuring ultra soft and light blue 100% cotton shirt.
This smaller transportable Van de Graaff Generator will easily fit in any classroom!
NEW 2016 DESIGN! This hip red tee features Pi to 1000 decimal places on an ultra soft 100% cotton shirt.
Get swept away by this fantastic robot kit that uses vibrations to move!
Experience this sphere powered by the sun!
Watch what your music can create with this amazing Snap Circuits set!
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