Smith 40" Post Guide-Ons allow you to see the location of your trailer when it's under water. 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.• Mounting hardware and wiring included• Sold in pairs• Adjust out to 13" on each side• Fits frames up to 3"W x 4.25"H• 18"H x 1.5" square, 16-gauge pre-galvanized steel uprights• 2" schedule 40 white PVC posts (2.375" OD)• Stands 40" above the trailer frame• Made in the USA Increase your trailer's visibility over the road at night Adjust out to 13"" on each side Mounting hardware & wiring included | CE Smith 40" Post Guide-On with LED Lighted Posts in Red Made in USA