Engineered to fit behind ladders. This unique design gives you all the benefits of a standard tab in an ultra compact design. These kits are updated with 11-gauge stainless steel blades. Boat lengths 14' (4.3 m) to 25' (7.6 m). Blades are constructed of a stronger 11-gauge laser cut 304 stainless steel and 3/8”(9.5 mm) diameter hinge pin. Upper and lower high impact corrosion proof mounting brackets with mechanical cable gland seal.