- Constructed from zinc alloy material, nickel plated finished, wear-resistant and durable to use.- For doors and windows that require more security.Can mount either vertical or horizontal.- The product consists of two parts, a body with a spring pin and a metal head for fixing.- Structure instruction: Press the button, pop-up open.- Applied to the lightweight doors,toolbox,cabinet etc. Specification:Material: Zinc AlloyFinish: Nickel platedMain Body Size: 83mm x 30mm x 23mm / 3.27" x 1.18" x 0.91" (L*W*Max.H)Bolt Size: 12mm x 8mm / 0.47" x 0.31" (Extension Length * D)Buckle Size: 13mm x 30mm x 14mm / 0.51" x 1.18" x 0.55" (L*W*H)Mounting Hole Diameter: 3mm / 0.12" Package Content:3 x Barrel Bolt Latch