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
Cover, Material: Rugged ABS plastic, For E/M Apparatus, Protects the bulb of the e/M Apparatus during transport, Provides viewing of the e/M Apparatus in lit classrooms