Ropes, chains, ropes, ratchet straps and S hooks use this silver ring to secure bicycles, landscape equipment, large appliances, machinery and other loads on trailers utility vehicles, van beds, caravans, vans, boats and warehouses. Specifications: Material: Galvanized iron Color: Silver D ring Length: 34 mm Clearance for internal D ring: 26 mm D Ring Thickness: 6 mm Mounting Bracket: 57 x 20 mm / 2.24 x 0.79 inch Hole: 6 mm / 0.23 inch Bearing Weight: 540 kg Package includes: 6 * D-Ring Note: 1. Please check the size measurement chart carefully before to make a payment. 2. Please allow 1-2mm difference due to manual measurement. 3. The color of the actual items may be slightly different from the collection pictures due to different screen display 4. The D-ring should only be used as a tie-down anchor for cargo and not for top lifting.