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 fram 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