Feature: 1. This child safety lock has enough strength to complete the work of preventing babies or pets. 2. It is designed to protect your child from potential injury or danger behind the door or room. 3. Using environmentally friendly ABS material, it is durable, wear‑resistant and tear‑resistant. 4. There is a strong adhesive on the back, no perforation, can be installed directly, suitable for most standard door handles. 5. This safety lock can be easily removed with a hair dryer to avoid damaging the surface of the door. 6. It is suitable for most children about 2 years old and most small pets, and is a must‑have item at home. 7. Please make sure that door is clean and dry before installation. Press and hold the lock for a few seconds, After installation, it is best to wait 24 hours before using it. Specification: Item Type: Baby Safety Lock Material: ABS Weight: Approx. 102g / 3.6oz Base Plate Size: Approx. 35x50mm / 1.4x2.0in Installation 1.Clean and dry 2.Peel off the tape 3.Stick the lock firmly 4.Ready to work . Package List: 4 x Baby Safety Lock Note: 1. Please allow 0‑1 inch error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.