[Application]: Use for MERCURY / MARINER 135 - 250 VERADO 200 - 300 120 - 375 ALPHA AND ONE STERNDRIVES ALSO / MAR 75 1984 AND NEWER VERADO 135 - 200 Fury, Plus, Plus, 4, , I & Propellers. (Attention: Does not work for Verado V8 engines with 1.25 inch propellers.) [Function]: Used to protect the transmission system maintenance and parts replacement. Cushion and protect the transmission system from shocks. [Advantages]: Soft-Shift Rubber Hub Kit Helps prevent shift noise and propeller rattle to provide a quieter and smoother transmission of your engine's power to the propeller. Color: Black Material: Metal Package Contents: 1x Hub Kit - II Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.