This door knob lock is designed to baby-proof interior doors by securing the knob and preventing access. It comes in a 2-pack. Product details - Dimensions: 3.25 inches long, 1.5 inches wide, 4.5 inches high - Mounting: adhesive installation; requires a flat surface to attach - Mounting area needed: at least 4.5 inches tall and 1.5 inches wide - Compatibility: fits most doors with a suitable mounting area - Package: 2-pack set Key benefits - Improves child safety by preventing door opening and entry to restricted areas - Simple, tool-free installation on flat door surfaces - Compact design that complements most decor while remaining unobtrusive Usage scenarios - In a nursery or bedroom to keep your child from entering restricted rooms at night or during naps - On kitchen or utility room doors to limit access to potentially hazardous areas - In shared spaces or hallways to control door access during playtime or cleanup Notes - Ensure the door surface is clean, dry, and flat before applying - Verify there is sufficient mounting area on your door prior to installation This description reflects the stated dimensions, two-pack packaging, adhesive mounting method, and the practical, safety-focused use of the product.