The steel M1000 is a universal rack system that can be installed on any Pickup Topper & Caps (drilling required). The mounting bases are 3 mm thick and have an extra wide 6" X 1.5" mounting base, polyfoam gasket and 1" X 5" interior plate secures the rack system onto the vehicle.This system weighs in at 14 lbs. with stainless steel hardware. Max load capacity of this system is 500 lbs. for a 2 bar system. This system is available in black or white.