Features: 1.Heavy duty tie down rings made of high strength solid steel, the load?bearing can get to 1000 lb. 2.Used to add tie down points for a truck, trailer, SUV, boat to carry heavy loads, ensure firmly fixing to avoid cargos swing and noise. 3.With high quality black protective coating, effectively prevent corrosion and rust, durable and sturdy. 4.Good weathering resistance, can withstand harsh conditions, ideal choice for outdoor using. 5.Universal to be installed on minivan and SUV, interior cargo van, enclosed box truck, pickup bed and tailgate. 6.Easy to install by threading a screw or bolt through the 1cm/0.4in diameter bolting hole on the mounting clip and securing to any wood or metal surface. Specification: Item Type: Tie Down Anchor Material: Steel Length: Approx. 82mm/3.2in Mounting Hole Diameter: Approx. 10mm/0.4in Application: Universal for Truck RV Trailer SUV, etc. Note: Please slight 0?2 cm error due to manual measurement. Thanks for your understanding.