Rubber/plastic inserts ONLY (does not include metal center section or any other hardware) for E series propellers, 150 hp and up. Fits PowerTech propellers fitted with the Cushion Lok (CL) hub system, and the second generation CL2. Includes Includes enough strips to do standard CL (4 white/10 black) or CL (8 white/4 black). NOT for Bravo II Cushion Lok. Includes instruction sheet–click here.