36 Inch Boat Straight Dock Bumper,Boat Edge Dock Fenders Boat Edge Bumper for Docking, Preventing Dent or Scratch Docking When you lower your boat into the water of boat slip, the waves or current tends to push the bow of the boat into the bulkhead. you can added this bumper to the front of our boat slip and problem solved. It works perfectly. The construction durable and well made. Hopefully it will last many seasons. This was easy to install and works well to protect my boat. Saves time on putting out and picking up fenders.The thickness of these bumpers and ease of installation to the dock make them very worthwhile in protecting boat.