• Often used to demonstrate the principles of conserving energy and simple machines
• Plastic pulley
• Steel rod and roller bearing hub that easily be connected to a support stand with a right-angle clamp

This product is often used to demonstrate principals of conservation of energy and simple machines. The pulley is constructed of plastic with a steel rod and roller bearing hub. Step sizes of the pulley are 1.5”, 2”, 2.5” and 4”. It is easily connected to a support stand with a right angle clamp.

Sold in a case of 10.