Home Safety: Child Window Safety Prevents Accidents Caused by Children Opening Windows or Refrigerators Too Widely Easy to Install and Use: The child safety lock comes with a highly durable adhesive film that can be peeled off and stuck in place without drilling (wait 24 hours after installation for best results). High-Quality Material: The Child Window Safety Lock is made of thick ABS plastic with zinc alloy locking clips. Rust and abrasion resistant, durable. Note: The window lock chain length cannot be adjusted; the window opening distance is maximum when installed horizontally and minimum when installed in a staggered configuration. Wide range of applications: Child safety locks are suitable for various types of windows, cabinets, refrigerators, drawers, door stops, etc.