1. Material: The child safety lock is made of high-quality ABS material, which is non-toxic, environmentally friendly, odorless, sturdy and durable, and will not fall off. It is very suitable for long-term use. 2. Easy to install and remove: It is easy to install and remove without the need for drilling tools or screws. When installing, clean the door surface, then tear off and paste the adhesive backing, and place the lever lock on the door. When removing, use a hair dryer to heat the baby safety lock for about a minute. Then carefully peel off the adhesive to avoid damaging the door. 3. Unique 180° rotation design: The horizontal design uses a 180° rotation lock system to lock the doorknob lock. It can prevent children and animals from opening the door and ensure the safety of the door. It avoids unnecessary dangers to children. 4. Wide application: Our doorknob locks are compatible with standard doorknobs in bedrooms, kitchens, children's rooms, and offices. You can use it on all doors.