Now you can always have peace of mind concerning measurements on the go with this great key chain tape measure. Measure up to 3 feet (1 meter) and just like those expensive fancy tape measures, this one has an adjustable tension lever so that you can control the tension, and it even automatically retracts! Great for any hobbyist on the go.
Discover how solar cells make electricity with this awesome kit!
Easily assemble a working alarm motion detector!
This is a classic demonstration toy of the powers of magnetic fields!
This advanced physics kit is perfect for older children already versed in physics knowledge!
This mirascope creates a 3D hologram image!
Build an electromagnet, an electrical catapult, a doorbell chime, a telegraph, and more with this kit!