Solid Steel Ball - 16mm 0.63 inch Diameter

This solid steel ball is great for physics collision experiments. Get couple of these and few of the larger or smaller ones and use them on a ruler with a 'groove' in the middle as a collision track. You can also use them with the 'loop-the-loop' or 'slide' apparatus for projectile experiments.

Features

• 16mm (0.63inch) diameter
• made from solid steel (nickel-plated)
• keep away from water and humidity as it may rust