Pack & Size: Package includes 6 pcs D-ring patches. PVC patch diameter 4.33" (11 cm), width inside D-ring 1.2" (3 cm). Note that adhesive is not included. Welded PVC Construction: Built with multiple layers of PVC-coated material securing the stainless steel D-ring. The material is welded to a PVC patch to create a seamless unit; stainless steel D-ring provides long-term corrosion-resistant performance. Highlights: Add extra tie-down points to your inflatable SUP board or other PVC-coated boats or gear with these reinforced PVC D-ring patches, making it easier to secure gear on a raft or canoe or to add grab lines for safety. Features: These patches are strong, easy to apply, and are commonly used by whitewater rafting outfitters to attach various gear to their boats. Wide Applications: Suitable for PVC inflatable boats, rafts, dinghies, kayaks, canoes, surfboards, stand-up paddle boards, etc.; used for rescue ropes, bailers, cargo, and thigh straps.