* The mouse moves very smoothly because the serface is made of silk-processed cloth. Because the bottom is composed of natural processed rubber, it can be easily adjusted to fit desktops made of various materials. Long-lasting, anti-slip, and environmentally friendly Make use of high-density, extremely fine material. * Reinforcement process on the edge; waterproof and easily cleaned. This is to avoid deformation, breaking, or damage from aging or pulling. sophisticated integrated multi-layer process. Extremely flexible, resistant to pulling and curling Hard on top and soft on the bottom, only 5 mm thick. Adjust to a wide variety of uneven surfaces. * 800 x 300 x 3 mm