* Capacity: 350ml & 450ml * The water bottle is made of high borosilicate glass, high transparency, high temperature resistance can be poured directly into boiling water. The lid is made of bamboo, which looks more beautiful and comfortable * Double wall design, good heat insulation and prevent hot hands. * This is a great travel tea bottle with stainless steel tea filter, which can filter tea very well. * 350Ml glass water bottle is a short filter, 450ml is a two-layer extended filter.