Tacto Electronics by PlayShifu - Stem Kit with Fun Science Puzzles
£49.99
CERROPI Large Newtons Cradle Pendulum with 7 Balls Physics Perpetual Motion
£152.98
5.0 (1 reviews)
Highlights
- Japan- Made nylon Strings with nano technology
- 7 Balls absolute aligned and swing 40-50 seconds
- 7 pieces of 20MM diameter metal balls
- 304 Stainless Steel Stand and verified by SGS
A classic Newton Swing Ball for desk toys & accessories. Enjoy 50 sec Swingtime with marble base in black.
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