Door Stopper Is Made of Premium Quality Rubber Which Has Features of Good Slip Resistance, High Elasticity and Wear Resistance. Non-toxic and Safe Durable. Protect Your Floors with These Abrasion-Resistant Door Stoppers Which WonT Slip. Keeping Your Kids, Babies and Pets Safe From Slamming Doors. Our Door Stopper Wedge Comes with A Bonus, Easy to Use, Adhesive Holder, Conveniently Storing Your Doorstops Safely Out of The Way Until Next Time. If Stuck with A Larger Door Gap Use Door Wedge Multipack and Simply Double Them Up. Our Rubber Door Stopper Holds Open Even The Heaviest of Doors. with A Powerful Grip, This Versatile Door Stop for Bottom of Door Works On Any Surfaces, Like Concrete, Carpet, Stone, Tile, Linoleum, Perfects for Residential and office Areas As Well As Industrial/Commercial Use.