Save with this pack of 10 buzzers. 3 Volts DC 400Hz. Great for Morse code circuits.
Works on 3 V DC (any 2 AA batteries in series will do.)
Create your own circuits or test batteries and solar cells with this buzzer. Connect it to a battery and a key switch to make your own Morse code circuit.
This glass Erlenmeyer mug makes an excellent gift!
The LCD Digital Microscope II is a professional biological microscope at an affordable price. Up to 1600X with digital zoom!
An ancient toy featuring optical illusion and hands-on fun that never grows old!
Build 14 assorted solar robots, some of which can travel over water!
Discover how solar cells make electricity with this awesome kit!
Make the coolest 3D pin art on your desk with this amazing desk toy.