Each frame receives an electrostatic powder coat finish to ensure maximum adhesion and durability 11 gauge steel frame ensures maximum structural integrity standard rubber feet protect base of the frame and prevent the machine from slipping this is for the life fitness g5 and g7 only this machine is perfect for someone that was to increase the amount of variety that you can do in your workout the life fitness adjustable bench allows you to use the g5 or g7 as free weights as they use the sa