These are my all time favorite go to birthday present for boys and girls! Educational and FUN!
4M Tin Can Edge Detector Science Kit for only $5.38 (Reg. $19.99)
- Part of the Eco-Engineering/Green Science Series
- Fun science project creates a edge detecting robot
- All you need is a small crosshead screwdriver and empty soda can
- Requires 1 AAA battery, not included
Shipping is a flat rate of $5 no matter how much you order site wide, so shop around and check out their other deals, too!