The cover of the notebook Using high-quality environmentally friendly silicone materials, it is safe, environmentally friendly, healthy, and odorless. It has high-strength elasticity and tear resistance, the surface is soft, elastic and smooth, and the hand feels elastic and comfortable. Forming production process, smooth and beautiful appearance.It is no deformation, easy to clean, and long service life.And the colors are bright and beautiful,warm and bright.It will be popular with kids and women.