Review on SHONAN.SYSTEMS 4 Inch Carabiner Clips- 2 Pack Heavy Duty Stainless Steel Spring Snap Hook D Ring Carabiners For Outdoor Camping, Swing, Hammock, Hiking, 400Lbs Capacity by Terry Reed

I use these for attaching things like bait holders and fish baskets to my dock, along with tying my boat up to the dock. I use a short rope and bungee strap to allow for my boat to move under forces of wind and waves, but still be held within a step into the boat. And tying or untying the boat needs only a few seconds. Handy.