Newtons Cradle LED Light Up Kinetic Energy Balance Ball Home Office Science Gadget

Description: Model: Newtons Cradle Material: ABS Base & Shelf + Fishing Line + Glass Ball + Electronic Components Color: Black&White Batteries: 4X AA batteries (not include) Size 1: (L)X(H)X(W)12X12X9cm/4.72''X4.72''X3.54''(appr.) #2 Size 2: (L)X(H)X(W)15X15X11.5cm/5.91''X5.91''X4.53''(appr.) #1 Features: Newton's Cradle makes a great desktop gift. These swinging balls will keep you occupied for hours at work. Unique exclusive contemporary design complements any office or home decor. Turn on the switch, the light of the bottom plate is directly illuminated to the sphere. Newton's Cradle is a clever device that not only demonstrates a pendulum, but also shows the Laws of Conservation of Momentum and Energy. Package included: 1 x Newton Balance Ball More details: