This product is from the house of spider juice. This anti-skid felt material foam protection pads are great for protecting floor and household surface from scratch caused by furniture, and also use to fill uneven legs of furniture and appliances. It is designed with anti-skid felt material foam material and to be self-adhesive, just peel the protector pad from the backing sheet and position the pad on to the surface where it to be. 1. Easy to install. Make sure to clean and dry the chair feet, then stick the self-adhesive felt pad. we recommend to install it at night then wait 12 hours before start to use the chair. 2. These EVA felt pad also apply to recover the uneven or damaged of the foot. 3. Protect the floor from scratches. 4. Prevent noise when dragging furniture create a quiet environment. 5. Anti-skid. Self-adhesive on the back side strongly stick to furniture feet prevent slippage between the floor and furniture.