Features:Function: D ring tie downs anchor with Steel construction for good strength and longevity.Rust Protection: Tie down rings made of exceptionally zinc plated solid Steel, protected by zinc plated to prevent corrosion and rust.Easy Installation: By threading a screw or bolt through the 3mm diameter bolting hole on the mounting clip and securing to any wood or metal surface. (Screw is not included)Wide Application: D ring for trailer, suitable fit for bikes, ATVs, UTVs, motorcycles, vehicles, car, warehouse boat, RV, etc.Specification:Type: Enclosed Trailer AccessoriesMaterial: SteelColor: BlackMax Broke Strength: 220LBSTie Down Anchors Ring Width: 25mm / 0.98"Tie Down Anchors Ring Diameter: 3mm / 0.12"Cleat Size: 22x16x1mm / 0.87"x0.63"x0.04"(L*W*T)Hole Diameter: 4.5mm / 0.18"Total Length: 35mm / 1.38"Package Included:4 x D Rings Tie Down Anchor