The silicone cup is made of food grade silicone. It is usually safe. It has a cold resistance of -40 ° C and a high temperature resistance of up to 220 ° C. It is durable and resistant to deformation. It is soft and can be folded into a pocket.
Food grade silica gel is an inorganic polymer colloidal material obtained by polycondensation of silicic acid. Its main component is SiO2·nH2O. Its content is above 98%. It is non-toxic and tasteless, and its chemical properties are stable. In addition to caustic and hydrofluoric acid under normal conditions, it is non-toxic. Does not react with any acid or base salts. Food grade silicones are commonly used in products with high safety requirements, such as baby pacifiers and baby bottles.
The silicone folding cup is a dustproof, environmentally friendly, non-toxic, versatile, beautiful, easy to carry, hygienic folding cup. There are double wall panels. Two adjacent portions of the outer wall are threaded, and adjacent two portions of the inner wall are configured to be movable up and down. The rotation of the outer wall thread drives the inner wall up and down to achieve the folding and stretching function of the cup.