Garage Physics Murlin Trebuchet Kit | DIY Multi-Radius Linear-Node Catapult, Brown

A New Twist on the Classic Medieval War MachineTheMulti-RadiusLinear-Node (MURLIN) trebuchet combines the throwing advantage of a standard trebuchet with a highly efficient spinning wind up. The result? Gravitational potential energy is redirected in a way that achieves amazing results! The included ping-pong ball easily shoots up to 30-feet.so let the experimenting begin! Includes 1kg counterweight and illustrated scientific manual.Once assembled measures: 25 inch x 12 inch x 26 inch.For ages 14+.