High Quality: Made of high-strength steel wires and a quality combination lock, simple and efficient to use. It can be opened immediately with the correct combination. No keys required. 4-Digit Combination Lock: Constructed from plastic and stainless steel, this number-coded lock helps secure sliding doors and windows, protecting children from potential hazards. The combination design saves time searching for keys and eliminates concerns about key loss. Wide Application: Suitable for refrigerators, freezers, cabinets, ovens, tool chests, and drawers. Compatible with side-by-side refrigerators and various household storage units. Child Safety: Designed to prevent young children from accessing potentially harmful substances or consuming food unsupervised. Helps keep kids safe when not under direct parental supervision. Punching and Adhesive Installation: Can be installed with adhesive pads without drilling, preserving your home’s surface. For a more secure fit, optional screw mounting is available. Strong adhesion ensures reliable performance. For best results, allow 24 to 48 hours after installation before use.