Mounting brackets,screws and S hooks,carbon steel frame with strong magnetic attraction • Strong magnetic tool holder, Weight capacity for each bar is about 13kg,durbale and sturdy • Easy installation with mounting screws and mounting brackets,efficient way to keep your often-used tools at hand • A great addition to any tool shop or garage storage area • Keeps tools off the floor or work bench and within an arms reach • Powerful magnets hold tool and other ferrous objects in place • Sizes: 8", 12", 18"