Why you need it: Worried about your child accidentally locking themselves in a room while playing? Concerned about the risks of opening doors for children or pets when you can’t always supervise them? Our childproof door lock cover features a rotating back-lock safety deadbolt that prevents accidental operation by children—giving you peace of mind. Hidden switch, difficult for children to open: This childproof door knob cover requires pressing the button inward and then sliding upward to unlock. It’s easy for adults to operate—even with one hand while holding a child or other item—but challenging for young children to understand or manipulate, helping prevent accidental self-locking and distress. Simple installation: No drilling or tools required. The cover features a non-marking adhesive backing designed to withstand 15–20 pounds of pull force, ensuring secure attachment that resists removal by small hands. Environmentally friendly and sleek design: Made from safe, non-toxic materials. Strong applicability: Includes four protective covers compatible with most standard residential door deadbolts. Please measure your deadbolt before purchasing to ensure proper fit. Material: Plastic Color: Black Package Contents: 4 × Safety Lock Covers Note: Color may vary slightly due to screen settings and lighting conditions. Measurement tolerance: ±1–3 cm.