Package Includes: You will receive a set of spring latch with 2 spring latch door locks, 128mm in length, 47mm in height and 10mm in diameter, which can meet your daily needs well. High Quality Materials: Our spring bolts are made of high quality 304 stainless steel, strong and durable. The oxide film on the surface can prevent the door bolt from rusting, is not easy to be damaged, and can maintain good performance even in bad weather. easy to install: you can choose the place you want to install and make 4 holes in advance. The diameter of the hole is 5mm. Just screw the door lock bolt to the door or window and adjust the diameter of the sliding pin to the right position to install it vertically or horizontally, saving time and effort . exclusive design: sealed and welded, thick reinforced base, durable; exquisite rubber handle design, to ensure easy pulling and rotating; strong spring, can rebound automatically after loosening. The flexible door latch has a soft closing action,