Working Load Limit:D-ring is made of heavy-duty solid steel, which is durable. Working load limit: 4000 lbs. Wide Application:Just weld onto your flatbed, truck, trailer, dock, warehouse, or even pickup,Use this fitting as the anchor point to secure your boxes, cargo, shipment, golfcar, car, motorcycle, ATV, UTV, Side-by-Side, Snowmobile. Easy to install: 1/2 inch thick,Just welded on the clip, and no additional parts are required. Material: Metal colour: silver Package Contents: 4 x weld on d ring Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.