Giant Newtons Cradle – Completely Assembled, Size 12.25In X 9.5In X 9.7In (310 X 240 X 245Mm), Ball Diameter 50 Mm – Eisco Labs

See a visual representation of the conservation of momentum and energy with this gigantic Newtons Cradle. This device stands over 9 tall and 12 wide. Weighs in at over 11lbs. Perfect for teachers, students or anyone who loves science and physics!