High strength zinc alloy, excellent processing performance and good corrosion. It is strong, rust proof, weather resistant, water resistant, antioxidant and resistant to corrosion.Safety anti theft and to give you close for protection. Manufacture meticulously and durable.It can meet with any demands of you. Perfect for car and RV, toolbox locks for trailers, etc. strong strength and long durability, and not easy to break. Wide Use: trailer, RV and toolbox locks, electric power and other industries. Colour:Black Material:Zinc alloy Package Contents: 2 x T-lock 4 x keys 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.