Cool and colorful ring magnets.
Great as fridge magnets, for crafts and science projects.
Magnet size: 1.1 inch or 28mm in diameter, 0.39 inch or 10mm hole, 0.19 inch or 5mm thick.
Comes in assorted colors. Price is per each. Buy multiple to get assorted colors.
This magnet has a strength of: 450 Gauss (0.045 T)
Learn Chemistry While Creating Sweet Treats
Easily assemble a working alarm motion detector!
This superb chemistry set features 350 mind-boggling experiments!
Great reference card for chemistry and physics students.
The Hoberman Sphere expands and contracts with a magical motion so fluid and simple that kids can't help but play with it for hours.
Build an electromagnet, an electrical catapult, a doorbell chime, a telegraph, and more with this kit!