1、SPECIAL KEY: Sliding door safety lock is equipped with two hexagonal keys, which cannot be replaced by ordinary objects, avoiding the disadvantage that ordinary objects can open and close. 2、SAFETY PROTECTION: Sliding door window lock prevents children from climbing outside the window, prevents falling incidents, and prevents thieves from opening the window to steal. 3、APPLICABLE OBJECTS: Safety window lock is applicable to sliding door and window limit, applicable to aluminum alloy windows and plastic steel windows, ventilation and anti theft. 4、ANTI SLIP: Sliding glass window lock has a premium stainless steel shell (brushed treatment), and upgraded anti slip rubber pad, anti slip and durable, safer and more stable use. 5、STRONG ADHESION: Window locks use stainless steel and rubber special fixed anti slip sleeve, anti slip sleeve and the lock body with special dehydration adhesion, to ensure that the extrusion and high temperature exposure does not fall off. 1 x Window Locks2 x Keys Item Type: Window LocksMaterial: Stainless Steel, RubberType: Security LockUse: Aluminum Alloy Window, Plastic Steel WindowProduct Size: Approx. 68x35x31mm / 2.7x 1.4x 1.2inGross Weight: 141g/ 5.0ozScope of Application: Moveable Distance: Maximum Distance 50mm/2in, Minimum Distance 10mm/ 0.4in