Ideal for larger pontoon boats. These guides are designed for rough water loading where high impact guides are required. The guide posts are hot dip galvanized for long life with covers made from high impact non-marking molded PVC. The guide posts are designed to be mounted between the pontoons. Made of 2-1/2" square, 13-gauge steel tubing. Mounts to trailer cross members up to 2" wide by 2" high. All mounting hardware included. Sold in pairs.