Why it is Necessary---Prevent the baby closing the door and pinching his fingers accidentally; Prevent the baby locking himself in the room accidentally; Prevent the sudden closing of the door and make a loud noise to wake the baby; Protect the safety of the door effectively. Wide Application---Suitable for all kinds of interior doors on the market, including left-opening door, right-opening door, bathroom door, kitchen door. Superior Quality---The anti-collision part is made of material, can absorb the noise caused by the door effectively , while protecting your furniture. High-quality materials make the product more and no damage for your door frame. Automatically open ---Unlike door stoppers on the market, automatic anti-pinch door stopper can auto revolve for 90°to open the door stopper, no need to manually open the switch, avoid parents forget to open the door stopper then put the baby in danger. 4PCS & look---There are 4 safety door stoppers in the package, which can be installed in all rooms according to your needs. It looks like an astronaut and can stimulate your baby's imagination and creativity., Manufacturer: Aundhegrtt