Suitable for all types of door panels with a thickness of 15-18mm and a hole diameter of 26mm. Each lock includes 4 screws, 1 replacement cover, and 1 striker. High-quality workmanship: The lock button is made of solid zinc alloy and plastic, durable, smooth, no burr, rust-resistant and corrosion-resistant, suitable for long-term use. Easy to install: Comes with replacement screws, locking covers, and a striker for simple installation. Simply insert into the hole (26mm diameter) and secure by tightening. Easy to use: Locking and unlocking is convenient. No key required. Just press the button to open or close. Wide application: Ideal for front doors, wooden boxes, desks, drawers, wall cupboards, cabinets, sheds, and other storage units requiring a locking mechanism.