This is a tie down anchor which is made from iron material, with the galvanized surface, anti-rust. Excellent craftsmanship makes it have the characteristics of high strength, no burr, weather resistance, high hardness, wear resistance, and resistance to deformation. This is a very good trailer anchor ring, which can meet your needs very well. Features -Color: Silver. -Material: Iron galvanized. -Size: About 6.00X4.00X2.00cm/2.36X1.57X0.79in. - This D-ring tie anchor adds a heavy anchor point for ropes, cables, belts or chains. - This D ring tie down is easily fastened on metal surface or floor, convenient to use. - Great for boats, car, trailer and other applications for tie downs, towing and off road recovery. - Great for securing kayaks, ATVs and other equipment, bikes, and more. - Once mounted, can be used them for tarp straps, small chains, ratchet and cam straps, ropes, and other tie-downs. Package list: 4 -shaped pull-tabs