For Pvc Inflatable Boats, Sup Kayaks, And Canoe Deck Accessories, There Are 4 Pack Size:4Pcs kayak inflatable boat D-ring round patch pad,PVC patch diameter 3.54" (9cm), Width inside D-Ring 1.2" (3cm),2.5m Black Bungee Cord,4Pcs Cord Hooks. High Quality Durable:Built super tough with multiple layers of PVC-coated material securing the stainless steel D-ring.Corrosion-resistant, can be used for a long time. Good performance:Add extra tie-down points to your inflatable SUP board or other PVC-coated boat,roughen the back and solvent clean before gluing for good results, make it easier to tether your gear to a raft or canoe or add Grab the thread for safety. Easy to use:D ring patch easy to install and use,strong adhesive effect, easy to apply,no worry falling. Just apply superglue to the bottom of the patch and stick it to the boat for a strong and durable bond. Wide Application:D-ring patches are suitable for PVC inflatable boats,rafts,dinghies,kayaks, canoes,surfboards,stand-up paddle boards etc. Note: The D-ring patch does not contain glue,you need to purchase the glue separately.