JIF Marine ComfortSmooth Ride Motor Support Product Features Constructed with high strength aluminum Spring loaded to minimize shock Stainless steel insertion shaft Includes bolt on and over the roller brackets Product Specifications FXH Comfort Ride Motor Support Adjustable 27 - 36 FXI Smooth Ride Motor Support Adjustable 31 - 40 California Residents WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov Other Details Google Product Type Tie Down Straps Wiser Yes