Quieter Home: Stop the noise "The sound when the door is violently closed", which wakes up a sleeping baby or hurts a playing pet. Set of 6 door wedges gives you a helping hand. More Stable Effect: Tilt design and non-slip base provide good grip and lock the door in place. Bump design, to achieve better door protection. Height Adjustable Stackable:Featuring stackable, door stops are available for ground clearance from 2mm to 89mm (connect across the grooves/protrusions), almost fits the gap between all doors and the floor. Safe, Eco-Friendly and Durable: Door Stops is non-toxic, odorless, and made of approved high quality rubber by the FDA to ensure the health of your family (Safe for babies). Applicable to All Doors and Floors: Tiles, carpets, laminate floors, wooden doors, metal doors, glass doors, automatic door closing, heavy doors, front doors, standard doors , gates, commercial doors etc. Any questions before purchasing or during use, welcome contact us, we will reply to you at the first time, thank you!