Features: OOTDTY Made of stainless steel and aluminum profile and steel, with aluminum base and stainless steel ring, single pin will not rust and prevent corrosion. The rated capacity is 3500 lbs, and the maximum can reach 4000 lbs, which is the maximum load that the clamping device should bear; This accessory is suitable for most aluminum rails. Round ring for various binding fittings. Works with a wide range of hooks, latches and straps. The fitting is spring-loaded to allow for a simple fastening and disconnection operation. Specifications: Material: Stainless Steel Quantity: 1pc,6pcs,10pcs (optional) Package Included: 1x or 6x or 10x Single L-Track Connecting Pin Note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the image may not reflect the actual color of the item.