Dangerous Threads Heavy Duty Roller Buckle - Nickel Finish - Various Sizes (2 Pieces, Nickel - 1 & 1/2") Solid Steel, Bright Nickel Finish Single Tongue "Heel" buckle with loose inside roller Perfect for belts, Harness Straps, Ornamental designs, saddlery, many other uses. Fits leather or fabric strap or belt