Bakeware, Tableware, Drinkware and Cookware Design Himalayan Tea Tumbler by Unibott Technology Incorporation Himalayan is a portable thermal tea tumbler that keeps tea leaves separated from the water. A semi-perforated tea separator isolates the leaves and prevents the tea from returning to the brewing chamber. The strength of the tea can be controlled easily, and the tumbler opens with one click for direct drinking. The detachable bowl-shaped infuser is made of food grade 304 stainless steel with titanium plating, while Tritan is used for the brewing chamber. The tumbler is 218 mm high, 70 mm in diameter and weighs 338 grams.