Bigger than the original, award-winning Ball of Whacks, it has 192 rare earth magnets inside so it looks and feels hefty in your hand! The 36 magnetic design pieces include two entirely new pyramid-shaped elements. There are 24 Whack pieces, six Half-Whack pieces, and six flat Whack pieces. This complex structure presents a greater challenge in reconstructing the Ball shape. It also opens up far more hands-on creative options as you design your own shapes.
Includes 96-page Guidebook
The Duncan Phoenix Diabolo features a stable, hard rubber shell that retains its shape.
Build your own 10 inch kaleidoscope with this great kit!
This 1mW, 532nm Super Safe Green Laser Pointer is for education, government or other settings where safety is a concern.
With this kit, you can conduct 25 experiments to learn how an electric motor converts electricity into motion, and how an electric generator does just the opposite, converting motion into electricity.
High-quality green laser pointer projects a green dot up to an incredible 2 miles away.
Build a tumbling robot that gets up right after it has fallen down, without any outside help!