Features: Ensure enhances security with our Impact Activated Self Closing Door Latches, designs to automatically lock door upon closing, providing peace for home or office.<br> Crafted from aluminum with a rusts resistant coating, this Latches is build to last and for various door materials seamlessly.<br> Suitable for homeowners, office managers, and businesses want to improve access control and security measure .<br> Perfect for residential front door , office partition door , warehouse door , and any location requiring automatic Closures.<br> Easy installation makes it a convenient choice for anyone look to upgrades their door hardware with reliable self closing functionality.<br> Specifications: Material: aluminum<br> Size: about 4x10x23x41mm/0.16x0.39x0.91x1.61inch<br> Package Includes: 1xSpring Door Latches<br> note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid,<br> Due to the differences between different monitors, the picture may not reflect the actual colorful of the item.