Material This spring bolt lock is made of iron material with polished surface, so there is no need to worry about corrosion, rust and rust, ensuring durability and reliability. Easy to Use: The black handle of the door barrel bolt lock is easy to pull and turn, and the latch can be easily opened and closed. Application: Spring latch is ideal for closing doors, convenient flip-up design, bolt lock provides extra security, lock valuables in garden sheds, increase garage door security and ensure the safety of livestock. Suitable for doors and windows, carriage bolts, machine bolts, industrial purposes, etc. Easy to Install: The spring barrel bolt not only secures the gate, but also helps align the twisted gate to keep the gate open or closed and drill a fixing hole in it to install the sliding pin with the correct diameter. Package content: Wanlian 2* spring lock pins