Material: Made of solid wood with good toughness and strong pressure resistance, this product is durable, crack-resistant, and designed for a long service life. The surface is evenly sanded, showcasing the natural wood grain to highlight quality. Provides floor protection by dispersing pressure and preventing scratches. Each cup has a thickness of approximately 2 cm / 0.8 inches. BEST STABILITY Features a non-slip EVA mat on the bottom that securely holds the piano in place and prevents sliding. The underside is lined with a felt layer to protect floors, provide sound insulation, and enhance non-slip performance. The EVA pads help reduce shock and floor vibrations, minimizing disturbances to neighbors. Thick sponge padding increases the contact area, improving stability, providing damping, and protecting the floor. Helps protect the piano by reducing internal component stress and extending its lifespan. Offers some protection against moisture by eliminating direct contact between the piano and the floor. An af able solution for high-quality piano protection. NATURAL WOOD GRAIN Each coaster varies slightly due to the unique pattern of real wood grain.