75″ Post Guide-On w/Unlighted Posts f/U-Bolt MountingProduct DescriptionThese Post Guide-Ons allow you to see the location of your trailer when it’s under water. The 2″ PVC tubes make it easy to see your trailer’s position when backing down the ramp.Features:Mounting hardware included Sold in pairsAdjusts out to 19″ each sideFits frames up to 3″ W x 5-1/4″ H1-1/2″ square, 16 gauge pre-galvanized steel uprights2-3/8″ diameter white PVC postsWARNING: 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. Owner’s Manual (pdf)