PROTECT YOUR KIDS: Home is the most secure place for everyone, still, there are hidden risks for babies due to the babies love to have adventures at home. child proof door knob covers can prevent babies from opening doors and entering the basement, storage room, and other places where danger easily occurs. THE LATEST DESIGN: The latest snap-on structure makes it difficult for babies to break apart but parents can use them safely on the door lock. Also Provides a separate cap for each lock button, which improves the practicality of doorknob safety covers. All components are designed to assemble and can be removed multiple times without the worry of breaking. RELIABLE MATERIAL: Made of environmentally friendly PP material, odorless, non-toxic, non-polluting, and durable, can ensure the quality and longevity of the door knob covers. NO TOOLS NEEDED: Without tools, simply covers on the door knob and close them, the toddler door knob cover is in lock. There are no barriers for adults to use, just grab the door handle through the hole and turn the knob. QUALITY SERVICE: Committed to providing a safer environment for children. Customer satisfaction is our goal. If there are any questions or suggestions about the product, please contact us.