Pontoon Post Guide-OnLoading your pontoon boat onto your trailer is much easier with post guide-ons. These guide-ons mount on top of rear cross member and fit in between the pontoons to center your boat on the trailer. Steel arms are made of 1-1/2″ galvanized tubing and extend fully into sturdy 2″ PVC tubes. Fit up to 3″ x 4-1/4″ frames. 22″ high. Sold in pairs.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.