The CIPA Pontoon Boat Mirror has a fully adjustable mirror head for a superior rear view. The mirror rotates 180° and has a tightening knob for securing positions. The bracket mounts directly to your pontoon boat rail with no drilling required. It fits square rails up to 1-3/8" and provides 4 custom height adjustments. Can be easily folded down out of the way. 3-7/8" x 11-1/4" convex safety glass mirror. 26" long bracket. Maximum height from the rail mount is 17-1/2".