【Widely used】 Sliding window locks can be easily applied to most environments, such as patio doors, glass sliding doors, sliding windows of hotels, residences, hospitals, schools and offices to give children a safe environment 【Durable material】 Made of stainless steel, the main material is strong and durable, the material is thickened and the screws are thickened, equipped with plastic soft rubber pads, anti-scratch, anti-wear workmanship, easy to open the surface,durable Sliding Door and Window Locks 【Safety performance】 Put it on the window or door bar, open and close by the part that needs the window, prevent thieves and children from climbing the window, limit indoor ventilation, improve air circulation and protect the safety and anti-theft of family and children 【Easy installation】 No punching installation, card installation, no punching, easy replacement, no other tool installation. Each window lock has an internal hexagon with a key, and can be tightened by rotating the hexagonal key to the right 【Precise design】Silicone rubber pad Scratch resistant Friction and aging resistance, high temperature protection window. Suitable for most plastic aluminum alloy windows, vertical or horizontal sliding doors and windows