Material and Dimensions: The pads are made of environmentally friendly silicone, smooth and odorless. External dimensions: 7.5 x 7.5 x 1 cm, internal dimensions: 5 x 3.5 x 0.8 cm, suitable for most wheels. Strong grip. The silicone pads adopt electrostatic adsorption technology to contact the floor surface, non-slip and excellent grip on the floor. Suitable for all floors: The soft smooth edge casters pads are suitable for any type of floor, no more worrying about your floor being scratched or damaged whether it is parquet, linoleum, laminate, tile, carpet, hardwood, etc. Fits Most Wheels: Suitable for home or office furniture with casters such as bed frame, sofa, armchair, dresser, piano, etc. No more moving furniture casters, they stay in place. Stays in place: Each glides can support a certain load to prevent floor damage by blocking furniture or bed casters and prevents unwanted movement.