Ideal for bunk style pontoon boat trailer with box, channel, or I-beam frames up to 3" wide x 4-1/4" tall. Minimum friction rolling action easily guide pontoon boat onto trailer. Height is 25" above trailer frame. Mount with roller bunks 2-3" from pontoons on a trailer frame cross member. Fits frames up to 3" wide x 4-1/4" tall. U-bolt mounting brackets. Includes two rubber roller bunks. Galvanized steel construction. Zinc plated hardware.

 PROP 65 WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For more information, visit www.P65Warnings.ca.gov