Tie Down 2 Bunk Board Style Trailer Guide-Ons Tie Downs Bunk Board Guide-Ons feature 2x4 black carpeted bunk boards, ensuring proper boat alignment and protection during loading and unloading. With adjustable posts, you can easily mount them 5-11 on the side of the frame or position them 19 high if mounted above the frame. This flexibility allows you to customize the setup to suit your boats specific requirements and trailer configuration. Crafted with quality materials, U-bolts and nuts are zin