HOT SELLING Physics Science Newton's Cradle Balance Balls NIce Desk Toy Friction and damping effects are also observed. Often used as a toy to amuse people. Great gift for everyone. SIZE:7.5cm x 9cm x 9cm - 2.95inch x 3.54inch x 3.54inch. Color: Claret-Red & Silver. For International Shipping to USA, it takes 15-28 business days. If you CANNOT WAIT PLEASE DON'T ORDER. YOUR PATIENCE IS MUCH APPRECIATED.