Made of aluminum and steel it is still lightweight and durable. Fitted with rubber feet for no-slip stability. The bipod eliminates the need for a bench rest and mounts to your Excalibur crossbow or any crossbow or firearm that has a picatinny rail. The legs adjust from 8" to 10" and collapse out of the way quickly and easily when not in use. In order to attach the Cross-Pod to your Excalibur crossbow you need to purchase the Tac-Pac Kit.