About this item WALL PROTECTOR: Are door knobs damaging your walls? Don't worry! Our large 3.15 inch door knob wall protector will not only cover up existing wall damage but also save your walls from future damage. Better have these than ugly holes on your walls NOISE REDUCTION: This wall door stopper is made of high-quality silicone rubber with optimum thickness to absorb the impact noise. Now let your children play with the doors and you won't hear a bang. Thanks to these door bumper STRONG BACK ADHESIVE: Looking for a long-term solution? Look no further! Our door wall protector comes with strong branded adhesive to firmly stick to all kinds of surfaces. Be it wood, drywall, cemented wall, ceramic, marble, glass or any other - you name it EASY INSTALLATION - DIY: Just clean the surface with a dry cloth, peel off the sticker and stick the door knob stopper for wall at the desired surface by firmly applying pressure. Neither assembly is required nor drilling VERSATILE & SUPER DURABLE: These large rubber door stoppers also work as a wall protector from furniture, chair wall protector, and wall hole cover, effectively serving as a wall guard! › See more product details