* TC4 titanium alloy is lightweight, easy to carry, high strength and corrosion resistance.* Full CNC machining process, integrated spring design.* TC4 titanium backpack buckle, gray and blue,* Also available in two sizes of keychains, two sizes of keychains, high strength and strength for a heavy-duty round pattern weighing 55LB.* Can be installed up and down, large capacity and maximum load capacity: 25KG (55LB)Specifications:* Optional color: Grey/Blue (as pictures show)* Material: Titanium alloy * Dimension: (Approx.) Length: 55mm Width: 18mm Package Contents:1 * KeychainNote: The actual colors of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.