This is a standard stereo jack that can be mounted on a chassis for your next hobby electronics project. Measures 3.5mm.
This kit focuses on teaching children about electricity and how electronic devices work!
Build your own 10 inch kaleidoscope with this great kit!
Learn all about the science of light, optics and visual perception with this wonderful kit!
Make the coolest 3D pin art on your desk with this amazing desk toy.
Ever wonder how to survive in the wilderness? These cards can help!
See the solar system in action!