1. CLEAN: Glass tea bottle and strainer are dishwasher safe. The bamboo lid should be cleaned by hand. 2. INSULATED: The glass bottle with tea strainer is double-walled to keep you warm. This means that the tea bottle with a strainer looks similar to a glass thermos flask for a while. 3. ROBUST: Made of borosilicate glass, the 450ml thermal tea bottle is scratch resistant. For better product maintenance, it is recommended to hand wash the double wall tea bottle. 4. Specification: Bottle Material: High Borosilicate Glass; Lid Material: Bamboo; Capacity: 450ml; Size: 23*7cm; Weight: About 500g; Color: Clear; Layer: 2 5. Package Included: 1 x Bottle, 1 x Strainer, 1 x Lid 6. GIFT IDEA: With the individual drinking cup including filter, you can not only make yourself happy, but also your family or friends.