Boat Size Up to 20' (6.1 m) Pin Dia. 1/2" (13 mm), Strap Thick. 1/8" (3 mm), Strap Length 3 9/16" (90 mm), Strap Width 7/8" (22 mm), Fastners (2), 1/4" FH (5 mm), Weight 3.25 oz. (92 g) Works with 80-46, 80-45, 80-56 and 80-55. Bushing Part # 25-047 available online.