Spherical Mass Set, Each Of 1 Set

Details:

This set includes four balls with a diameter of 2.5 Cm each, but features various masses, including a hollow steel ball, solid steel ball, plastic ball and aluminum ball, applications-race the hollow steel ball and solid aluminum ball down an incline. They have about the same mass, but the solid aluminum ball has a much larger acceleration down the ramp, fire the yellow plastic, solid steel, and hollow steel balls from a projectile launcher.