DOORWING makes baby and pet proofing doors at home easy! It locks doors in a slightly open position (1.5 inch opening) which helps protect hands and tails from door slams, lets fresh air through and keeps babies, toddlers, cats and dogs out of unsafe rooms like laundry, bathrooms, pantry, and bedrooms. Conveniently unlocks from both sides of the door to avoid accidental lock-ins and fits most doors and door frames.