Built-in spring plunger, you can just press the door to lock or unlock with soft closing pad. Eliminate the need for handles or knobs. Create the clean, seamless look of no buttons. Suitable for use with hinges without self-closing function. Long Time With Magnetic: Long stroke with built-in magnet, the magnetic force ensures a secure closing point which makes the door more welded and no longer leaves no "drift open" door. Make this push latch more suitable for medium sized doors. Powerful Piston/Spring: Bigger and thicker spring mechanisms for heavy duty have strong enough tension make this push opener a good choice exceptionally durable and timeless. Ensure the service life up to 20,000 times. Aluminum Housing: Aluminum alloy housing, more durable and durable. You can install the Ultra Slim Strike without drilling the screw holes using the included adhesive. Also come with knock screws. Mount the two elliptical holes first in order to adjust the location according to