PREMIUM POLYMER GEL: Better performance and longer life than standard rubber or silicone pads that flatten or fall off. MEDIUM ROUND: Ideal for most interior doors. Protects wall surfaces from damage by doorknobs and door handles. SUPERIOR SURFACE PROTECTION: Two-layer construction absorbs impact to protect walls and other surfaces from damage. PEEL & STICK – STRONG HOLD, CLEAN REMOVAL: Installs in seconds with a powerful adhesive that sticks securely and removes cleanly without residue or surface damage.. INSTRUCTIONS: Before installing the bumper, make sure the surface is completely clean from any dust, grime, liquid residue, or chalky paint/coatings. Simply peel the bumper from the plastic sheet and apply to surface. PLACEMENT ADVICE: Bumpers may not adhere well to chalky, flaking or poorly adhering paint/coatings on surfaces. Use care when placing bumpers on painted drywall or plaster. Removal of the bumper could cause paint lifting or surface damage. If you are unsure about compatibility, check by attaching the bumper and removing in an inconspicuous area first. 8-Pack Clear Round Gel Bumpers, Round 2.25" x .29". Protect your walls, furniture, cabinetry, and appliances with our energy-absorbing polymer gel bumpers. Designed to absorb energy and reduce damage or noise from contact, these bumpers are perfect for any non-porous surface. The clear, low profile design blends in seamlessly with surfaces to make them practically invisible. These bumpers stick easily to any clean, non-porous surface and can be easily moved and reused without leaving behind any residue or losing adhesion. Say goodbye to surface damage and hello to a quiet, protected space with our versatile and reliable bumpers.