[Application]: Use for MERCURY / MARINER 135 - 250 VERADO 200 - 300 MERCRUISER 120 - 375 ALPHA AND ONE STERNDRIVES ALSO / MAR 75 1984 AND NEWER VERADO 135 - 200 Fury, Plus, 4, I & Propellers. (Attention: Not compatible with Verado V8 engines with 1.25 inch prop shafts.) [Function]: Designed to protect the transmission system during maintenance and parts replacement. Provides buffering and protection against shocks to the transmission system. [Advantages]: Soft-Shift rubber hub kit helps reduce shifting noise and propeller rattle, delivering quieter and smoother power transfer from engine to propeller. Color: Black Material: Metal Package Contents: 1 x II Hub Kit Note: This package includes only the items listed above. Other products are not included. Due to lighting effects and monitor settings, the color of the item may vary slightly from the image. Measurement may vary by +/- 1-3 cm.