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
A massive mounted set of 100 rocks and minerals found in the US,
The Y-Ball Magnetic Puzzle is the perfect creativity tool for innovators, artists, engineers, writers, students, and you!
Great tarantula specimen for the science classroom!
An unconventional ball-tossing, head-catching challenge for 2 players or teams!
Build a hand that realistically moves its fingers using shape memory allow technology!
Easily assemble a working alarm motion detector!