Why you need it: Are you concerned that your child might accidentally lock themselves in a room while playing? Are you worried about the risks of a child or pet opening the door when unsupervised? With our child proof door lock cover, you can install a rotating back-lock safety deadbolt and help prevent accidental operation by young children. This added layer of security helps keep your child safe and gives you peace of mind. Hidden switch design – difficult for children to operate: These child proof door knob covers require fingers to press the button inward and then slide upward to open. This mechanism is easy for adults to use, allowing one-handed operation even while holding a child or carrying items, but is challenging for young children to understand. This helps prevent children from locking themselves inside a room and being unable to open the door, reducing the risk of fear or accidents. Simple installation – no tools required: No drilling or special tools are needed. The deadbolt cover features a strong, non-marking adhesive backing that can withstand a 15–20 pound pull force, helping ensure children cannot remove it. Simply peel off the protective film and press the cover firmly onto the deadbolt latch. Ideal for renters, as it does not damage doors, and can be removed cleanly without leaving residue, keeping your door and lock in good condition. Environmentally friendly and stylish: Made from high-quality, non-toxic ABS material, the cover has a durable shell with a smooth, edge-free surface that won’t harm children. The sleek black and transparent design blends well with various home decors and suits bathrooms, bedrooms, children’s rooms, playrooms, and living rooms, combining safety with aesthetic appeal. Wide compatibility: Each pack includes four protective covers. Each door knob safety cover measures 3.14 x 1.57 x 1.57 inches with an inner diameter of 1.57 inches, fitting most standard door deadbolts. Please measure your deadbolt before purchasing to ensure proper fit.