This safety door-proofing device features a bumper that prevents a door from fully closing, helping to avoid finger injuries while keeping the door locked in place. The opening is adjustable to let cats in and out of rooms while keeping dogs and kids locked out. DOORWING is super easy to install and keeps doors perfectly damage-free. It requires no drills, no glues, and no tools! That means it is also super portable. In fact, you can easily take it to grandma’s house, on vacation, or anywhere you go. You can even use it solely as a finger pinch guard while keeping your door unlocked. With all of these various features and advantages, DOORWING is truly an all-in-one door-proofing solution for child and pet safety.