This versatile safety lock is compatible with most door handles, as well as windows, cabinets, faucets, and pantries, helping prevent children, dogs, and cats from opening them. Ideal for use in homes, daycare centers, and pet care facilities, it helps protect children from potential hazards. Made from non-toxic, safe ABS material, this lock is durable, pollution-free, and built for long-term use. The unique 180 rotation design helps prevent children from leaving rooms unsupervised or entering unsafe areas. The horizontal design features a 180 rotating locking mechanism that secures the door handle, keeping children and pets from opening doors while maintaining safety. Easy to install and remove: Clean and dry the door surface, remove the adhesive backing, and apply the lock. Designed for easy adult removal but difficult for children to detach. To remove, gently heat the adhesive with a hair dryer for approximately one minute, then carefully peel off. Ergonomically designed for one-handed adult operation: The lever requires a two-step motion to unlock, which helps prevent children, toddlers, babies, and pets from opening doors and windows with handles. Adults can easily operate it by sliding the rod upward.