The Extreme Max Swivel-Top Bunk Bracket is the perfect option for the DIYer looking to build their own bunk trailer or the jack-of-all-trades working to repair an existing bunk trailer. The brackets mount directly to the trailer's crossmembers. The swivel top of the bracket sits at whichever angle you choose, providing a custom fit to your boat and trailer needs. The bracket installs easily, utilizing a U-bolt around the trailer crossmember to secure it to the trailer and a set of lag bolts to secure the swivel top to the bunk.