Spoke Pulley, ideal for use with photogates sensors. 65 mm diameter with spokes. Pulley, mounted on free running ball bearings with minimum friction. Mounted on a removeable rod of 150 x 10mm diameter
Mini Density cube set,Study Several Properties of Matter. Learn about density, mass, volume, buoynacy, specific gravity, and flotation while experimenting with real-world materials. Made from commonly used aluminum, copper, steel, brass, and zinc.