This micro vibration motor is ideal for tooth brush robots!
Comprehensive collection of 30 fossils.
This is a classic demonstration toy of the powers of magnetic fields!
Build a model green house and 9 other green energy-related devices with this great kit!
You don’t think recycling is cool? Get a look at this, we’re sure you’ll change your mind!
Build a hand that realistically moves its fingers using shape memory allow technology!
Easily assemble a working alarm motion detector!