An affordable, lightweight, plastic, 4-bladed propeller that can be attached to the end of a DC motor. Use it to propel small cars, boats, a fan, or even a wind generator! Great for use in tandem with a solar cell or a battery pack. Compatible with a wide variety of science fair projects.
This beautiful candle holder is carved out of natural amethyst!
Build your very own smart robot!
Build your own windmill generator kit by recycling a plastic bottle!
An ancient toy featuring optical illusion and hands-on fun that never grows old!
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.
This is a deluxe soldering station that can handle any kind of application!