Description Widely Used: Sliding window locks can be easily applied to most environments, such as patio doors, sliding glass 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 thick and the screws are thick, equipped with plastic soft rubber pads, anti-scratch, anti-wear , easy to open, 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 thieves children from climbing on the window, restrict indoor ventilation, improve air circulation, and protect the safety and anti-theft of family and children Easy installation: inst All window lock has an internal hex with a key, and can be tightened by turning the hex key to the right Precise design : Scratch, friction and aging resistant silicone rubber pad, high temperature protection window. Suitable for most aluminum alloy and plastic windows, vertical or horizontal sliding doors Suitable for all types of materials, mobilizes tools for sliding doors and windows, instantly locks sliding doors and windows - No need to drill holes, prevent windows from outside, protect your family safety and security, easy to disassemble and reuse. Usage: Sliding doors and windows Material: Stainless steel + Rubber Adjustment range: 1-6.9cm suitable for plastic and steel windows Quantity 2 Sliding window locks. 2 Hex keys. Friendly reminder 1. This window lock is not suitable for the rail in the middle of the window. Due to hand measurements, sizes listed may vary slightly. Quantity: