[Product Function]: Install the charging column through the main panel, which is convenient and to use the battery terminal [Scope of Application]: In the power supply system of automobiles, RVs, boats, yachts, racing cars, agricultural vehicles, etc. [Easy to Install]: High Quality Material - Each heavy duty battery terminal is made of high quality material, consisting of copper bushings and large brass nuts for maximum power transmission. The other side of the post has a 20mm stainless steel stud to handle the largest battery cable lugs [Bracket]: The powder-coated steel bracket holds the battery terminals securely in place no matter where you install it. Battery terminal relocation kit is essential for your equipment, car, boat, RV, tractor, UTV or Product material: rubber + zinc alloy + brass color: black Nail size: 20MM Opening diameter: 32MM Rated current: 250A Package Contents: 1 x Battery Charging Terminals Only the above package content, other products are not included. Note: