Newtons Cradle Fridge Magnet
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- Newton's Cradle Fridge Magnet
- A ThinkGeek creation & exclusive
- Works great on anything ferrous: your fridge, your locker, your filing cabinet
- Watch the laws of conservation of mass and energy
- Dimensions: 6 1/4" wide x 8" tall x just shy of 5" deep
- Weight: 8 oz.