Up to 17' (5.2 m ), Rudder Width 1/2" (13 mm), Pin Dia 5/16" (8 mm), Pin Length 1-1/4" (32 mm), Strap Thickness 1/16" (1 mm), Strap Length 3" (76 mm), Strap Width 1/2" (13 mm), Requires (4), # 10 RH (5 mm), 7.5 oz. (50 g)