Invisible door lock, disc streamlined pull ring type, invisible lock for home. Compatible with a variety of home decor styles. Fashion and simple appearance, no rust and no fading. Zinc alloy material, corrosion resistance, rust resistance, strong hardness and durability. Copper lock cylinder, good lock cylinder can prolong the service life of the lock, wear resistance and corrosion are very important. 10mm hidden thin design. Note: This model is but unlocked, which means that the single-sided key is unlocked, and the interior has an anti-lock hole. Thickened round panel design, one-piece molding, no sharp edges, smooth and does not hurt hands. Anti-pry solid lock tongue, solid lock tongue with cylindrical strip, anti-pick is more secure, left and right can be opened regardless of left and right. pure copper key Suitable for door thickness 38-50/50-75mm Overlock distance 60/70mm Lock tongue length 25mm Scope of application: bathroom door, room door, invisible door, etc. Door opening size: drill a diameter of 25mm in the center of the door thickness, if the distance between the lock body device is 60mm, the drilling depth is 83mm; if the distance between the lock body device is 70mm, the drilling depth is 93mm There are more interesting and practical products in the store, welcome to shop