*KeyFeatures *Adjustable Width: The width of these trailer guides can be easily adjusted, extending to 11 inches at most. They are compatible with trailer frames less than 3" wide and 4-1/4" tall. *Flexible Installation: Our trailer guide-ons can be mounted on top of the trailer frame or below it, and the U-bolts fit both large frames and smaller frames. *Solid Construction: These brackets are made of 0.12" thick steel and are powder-coated, so they work great against saltwater and do not easily bend or rust. *With Carpet-padded Boards: The two carpet-padded boards can be fixed firmly onto the brackets, and they will prevent the boat from being scratched. *Widespread Use: These boat trailer guides are suitable for ski boats, fishing boats, or sailboat trailers, and they make loading the boat so much easier. ******************************************************************************************************* *Specifications Model: 47 in Bunk Trailer Guides Bracket Material: Steel Finish: Powder-coated Bracket Size: 17.7" x 18.9" x 1.5" Bracket Thickness: 0.12" / 3 mm Board Length: 47" / 1190 mm Weight: 48.5 lbs / 22 kg ******************************************************************************************************* *Pakcage Content 4 x Steel Brackets 2 x Carpet-padded Boards 1 x Set of Mounting Accessories