Sliding window lock set: You will receive 4 pieces sliding window lock. Size specifications: The sliding window lock consists of a hex key, a lock body and a lock body. a lock cylinder; the total length of the hex key is 49mm, the size of the lock body is 30*24*24mm, and the diameter of the lock cylinder hole is 10mm. Material made of aluminum alloy: these window locks are made of aluminum alloy, thickened material, anti-corrosion and anti-rust, not easy to deform, Easy to install: no punched window lock, the design of the yellow plastic handle gets you started better. When installing, just insert the hex key into the hole, determine the installation position on the window rail, turn the key to adjust the window lock to fix it and the installation is quick. Wide range of applications: Sliding window locks are suitable for all kinds of sliding windows and sliding doors to improve family security. (Note: Not applicable to middle window track) Product 4 Pieces Sliding Window Lock Sliding Door Stops Adjustable Window Lock Adjustable Sliding Door Stops Alloy Aluminum Sliding Door Lock Window Security Product Specification: Material: Aluminum Alloy Size: Hex Key : 49 * 5 mm Lock body size 30 * 24 * 24 mm Lock cylinder opening 10 mm Color: silver Quantity: 4 pieces Product features: Thick aluminum alloy material, anti-corrosion and anti-rust, not easy to deform, and can be reused . Punch-free window locks, quick and economical installation, free control of window opening and closing, and improved security. The yellow plastic handle design is beautiful and practical. Scope of delivery: 4 * sliding window lock Note: If you have any questions about the products you received, please feel free to contact us. As a measure manual is required, please allow 1-3mm deviation. Due to different display methods, the color of the actual product and the picture may be slightly different.