Prevent Injuries, stop doors from slamming prevent from getting locked out. It doesn't fall off even with a strong impact, therefore will keep from accidentally getting locked inside a room. These simple and effective U shaped door proofing stoppers are strong and yet also flexible thereby fitting on most (2.5-5cm)standard door thicknesses. Place the door Finger Pinch Guard on the side or on top of the door. Provides a soft cushion between the door and door frame. When not in use simply hang around the door knob or door handle. Blends in and matches any décor style. It prevents the door from closing suddenly because of the wind, also prevent from accidentally closing the door and injuring their hands while playing.