Inboard Prop Nut Repair set fits for 1" to 1 1/8" shaft sizes. A must have tools set for you to replace new acme propeller. Some premium parts you need to ensure the connection between the propeller and the prop shaft. Made of premium steel these items are not easy to get rusty , not easy to wear and not out of shape for a long time. 【Package Including】 1 Key , 1 Nylon Prop nut （brass）, 1 Cotter pin 5008 Inboard Prop Nut Kit with New Pin and Key Quality Boating Replacement for 1" and 1-1/8" Shaft Size --Brass 5008 Prop Nut Kit it for Mastercraft, Nautique, Moomba, tige, centurion, supra, correct, etc. Inboard skiing, surfing and tail board boats can be used.