1. Material The: Kayak D ring is constructed of sturdy stainless steel which is strong and durable enough and anti-oxidation. The tie-down rings are painted with a quality black protective coating to prevent oxidation. 2. Strong patch adhesive effect: Canoe d ring patch easy to install and use, strong adhesive effect, don't worry. Simply apply super glue to the bottom of the patch and stick it to the boat. Use ropes to secure objects, paddles, etc. 3. Product: Lightweight and won't take up too much space on your boat. You can adjust the tightness of the rope yourself, you can easily lock the rope in place to hold any size item. 4. Uses: D Ring Patch is used for rescue rope, scoop, cargo, thigh straps. Great replacement accessories for PVC inflatable boat, raft, dinghy, kayak, canoe, stand up paddle board, SUP, surfboard and more. 5. Guarantee: If you have any question about our product you received, you can email us any time. We will respond to you immediately and help you solve your problem.