Usage Tips:"Name: push door opener / 2 pieces Material: metal Silver Size: 84 * 45mm Item weight: 50g / pieces Scope of delivery: 2 * magnetic buckle Push To Open: Built-in spring-loaded plunger, you can just simply press the door to latch or unlatch. Eliminates the need for handles or knobs. Create the clean, seamless look of no knobs. Suitable for using with hinges without self-closing feature. Long Stroke With Magnetic: Long stroke with built- in magnet, magnetic force ensure a secure close point that make the door more tightly united and no more 'drifting open' doors. Make this push latch more suitable for medium size doors. Powerful Piston/Spring: Larger and thicker heavy-duty spring mechanism has a strong enough tension make this push opener an exceptionally durable and timeless choice. Ensure lifetime up to 20,000 times. Easy To Install: You can install the ultra-slim strike without drilling screw holes by using the included adhesive. Also, come with strike screws. Mounting two screws in the bottom bracket. The magnet tip can be adjusted to 3 mm, so you don't worry about whether it could be difficult to locate the mount exactly. (Warm Tip: Please tear off the blue adhesive film before installation.) "