Jon Boat Support Bunk & Bracket Assembly24" carpeted bunk mounts crossways on the trailer tongue to support the flat bottom of a Jon boat. Adjustable from 5-1/2" up to 8" above tongue. Includes all mounting hardware for a 2" or 3" wide tongue. Board is covered with high quality, marine grade carpet.Sold individually.WARNING: This product can expose you to chemicals including ARSENIC ,CADMIUM which are known to the State of California to cause cancer or other reproductive harm, and BERYLLIUM,COBALT METAL POWDER,NICKEL (METALLIC) which are known to the State of California to cause cancer, and Chromium (hexavalent compounds),LEAD which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to >P65Warnings.ca.gov.