40 L.E.D. Post Boat Guide-OnPost Guide-Ons allow you to see the location of your trailer when it's underwater. Equipped with long lasting, waterproof and shockproof, one piece red and amber LED lamps. The LED lamps make it easy to see your trailer's position when backing down the ramp and dramatically increase your trailer's visibility over the road at night. Amber light faces front, red faces rear. For trailer frames up to 3W x 4 1/4H. Mounting hardware and wiring included.Features:40 Total HeightAdjusts Out to 13 each SideFits Frames up to 3W x 4-1/4H1-1/2 sq. 16 ga Pre-Galvanized Steel postExtends 18 Into 2 PVC tube for strengthSold in pairsWARNING: This product can expose you to chemicals including LEAD,Chromium (hexavalent compounds) which are known to the State of California to cause cancer, birth defects or other reproductive harm, and NICKEL (METALLIC),COBALT METAL POWDER,BERYLLIUM which are known to the State of California to cause cancer, and ARSENIC ,CADMIUM which are known to the State of California to cause cancer or other reproductive harm. For more information go to P65Warnings.ca.gov.