Biciklikerék pörgettyű

For demonstrating conservation of angular momentum, wheel with spokes (24"), wheel rim with lead inlay, two handles, one of which is removable, groove for cord, metal bearing on one side with protruding ball for setting in clamp socket with bearing cup or for suspension from a cord
Dimensions: D=approx. 600 mm, W (with handles) = approx. 350 mm
Handles: 32x120 mm each, groove for cord D=55 mm