STRONG ADHESIVE WALL PROTECTOR: Crosize door wall protector features industry-leading adhesive stickers that have passed rigorous no-fall tests on various surfaces, including wood, drywall, ceramic, marble, and glass. (Note: Rough surfaces like cracked gypsum plaster or microcement walls may reduce adhesion. Removal from painted walls may cause paint damage.) EASY TO INSTALL: The door knob protector is self-adhesive on the back side. Just clean the surface with a dry cloth, peel off the sticker and firmly stick to the wall for about ten seconds. No drilling, no tape, no dents on the wall anymore! Besides, it is easy to remove without any marks. The bumpers work better on a SMOOTH surface. DO NOT use the bumper on uneven or painted walls, tearing off it may tear the paint MULTIPURPOSE USE: Our door bumpers can be used in multiple ways at home, such as doors, refrigerators, cabinet doors, table corners, chairs, headboards, toilet seats and so on. They are perfect for safeguarding walls in frequently used areas of your home, like bathrooms, bedrooms, hallways and more. The protecter is a must have to avoid the hitting damage. NOISE REDUCTION AND FURNITURES PROTECTION: Our door stop stickers are designed to effectively reduce the noise of closing doors, making your home a peaceful place. The protector is a great product for use to minimize damage from doors and Furnitures, and to absorb shock from door knobs and reduce noise from any furniture collision. REUSABLE & SATISFACTION GUARANTEED: The doorknob bumpers can be easily washed and reused, and applied to many different scenes.We're confident you'll love these innovative wall protectors. If you have any questions, our customer service team is always here to help. Crosize 2" Door Stoppers for Wall, No-falling Door Knob Wall Protectors, Strong Adhesive Door Bumpers, Clear, 8 Pack