A set of 4 quick-release mounting pins to secure 1 or 2 pairs of MaxTrax recovery devices to the Recovery Device AND Gear Holding Side Brackets – by Front Runner and other MaxTrax mounting systems. Made of black nylon and stainless steel. A set contains 4 stainless steel Nylock nuts and 4 stainless steel washers. Each mounting pin includes a hole to insert a small padlock (not included). Please Note: This set is designed for and works with MaxTrax MKII only (MaxTrax sold separately). These pins do NOT bolt directly to the Slimline II Roof Rack.