The 450ml cone shape polymer tumbler is a classic and popular size for gifts or personal use. Through dye sublimation, pictures can be printed on its outer shell surface in a full size area by imprinting with HSB, with matte finish and uniform color. Also, it has certain heat insulation, which can maintain the temperature of the drinks to some degrees. This double wall tumbler is a salable product in sublimation, owing to the features of being unbreakable and portable. The lid is made of silicone, which is food-grade safe material, being soft and elastic, as well as having good sealing effect to prevent leakage. Due to the preciseness of polymer manufacturing, SUN-FLY’s polymer tumbler controls high accuracy of product model to make every corner of this double wall tumbler exactly perfect, and material is strictly controlled on safety issue with standard of FDA, EU, CA65, etc.