Adjustable Security Door Locks Anti-theft Protection Lock Home Safety Latches Aluminum Alloy Sliding Door And Window Safety Lock Description: Installation Steps 1. Remove The Inner Handle 2. On The Upper Hole Position 3. Handle Installation Through Screw 4. Fixing Mark Of Strut Base 5. Unscrew The Hole 6. Fix It With Screws Specifications: ăTypeă: 1pcs Limit Wind Hook, For Holding Open A Window. ăMaterială: Thicker Material, Not Afraid Of Strong Wind, High Hardness, Not Easy To Break, Integrated Body, Solid And Simple Structure, Anti-Rust, Anti-Corrosion, Nondeformable, Polishing Processed Surface, Top Grade Appearance, Durable To Use. ăFunctionă: Ideal For Fixed The Position Of The Windows, Wind-Proof, To Control Window Open And Safety Silent Holders. ăInstallationă: Screw Fixing Type, Consist Of Hook And Eye Closure Lock, Come With Matched Mounting Screws, Easy To Use. Package Included: Wind Hook*1 Chip*1 Screw *1 Notes: 1. Due to diverse screens and lighting, product pictures may possibly range barely from precise colors. 2. The product size is manually measured, please allow 1-2cm difference, thanks on your understanding!