Why you need it: Are you concerned that your child might accidentally lock themselves in a room while playing? Worried about the risks of leaving doors accessible to young children or pets when you're not able to supervise? With our childproof door lock cover, you can install a rotating back-lock safety deadbolt and prevent children from operating the deadbolt by accident. Keep your child safer and gain peace of mind. Hidden switch design makes it difficult for children to open: This door knob cover requires fingers to press the button inward and then slide it upward to unlock. It's easy for adults to operateone-handed operation is possible even while holding a child or carrying itemsbut too complex for most young children to understand. This helps prevent accidental locking incidents and reduces the risk of a child becoming trapped and distressed inside a room. Simple installation: No drilling or tools required. The deadbolt cover features a strong, non-marking adhesive backing that resists pulls of 1520 pounds, ensuring it stays securely in place and cannot be removed by a child. Just remove the protective film and press firmly onto the deadbolt latch. Ideal for renterswont damage doors and leaves no residue when removed, keeping your door clean and undamaged. Environmentally friendly and stylish: Made from high-quality, eco-friendly ABS material with a smooth, edge-free surface that wont harm children. The sleek black and transparent design blends seamlessly with bathroom, bedroom, childrens room, playroom, or living room doors, offering both safety and aesthetic appeal. Wide compatibility: Includes four protective covers. Each measures 3.14 x 1.57 x 1.57 inches with an inner diameter of 1.57 inches, fitting most standard deadbolts on the market. Please measure your deadbolt before purchasing to ensure proper fit.