Fusing a dozen of the most effective free weight exercises into a single bodybuilding machine, the Powertec workbench multi gym system is a must for the serious workout enthusiast. The Powertec workbench multi gym system is technically a leverage gym, meaning it combines the feel and resistance of free weights with the safety and control of a machine. At the same time, the multi system doesn't use any cables or pulleys so aside from pure motion, it's virtually maintenance-free. New stock due 7th May.