This is a great attachment for your boat. It is Peel & Stick large 6 inches by 8 inches loop Velcro. You Peel and Stick this to your boat and you now have places to stick your VestPac Fly Boxes and VestPac Fly Ripple Foam for quick access while floating the rivers or fishing from your Kayak. This is as simple to install as clean, peel and stick. Will last years.