Made from high-quality double-walled borosilicate glass. Removable 18/10 stainless steel infuser filter with handle for easy removal. Airtight seal: screw-on lid made of bamboo with silicone gasket. BPA-free. 100% leak-proof. Designed for infusions, teas, and cold drinks. 100% flavor and aroma. Does not transmit odors or flavors. Resistant to thermal contrast. Easy cleaning: dishwasher safe (except the lid). · Made from high-quality double-walled borosilicate glass. · Removable 18/10 stainless steel infuser filter with handle for easy removal. · Airtight seal: screw-on lid made of bamboo with silicone gasket. BPA-free. 100% leak-proof. · Designed for infusions, teas, and cold drinks. · 100% flavor and aroma. Does not transmit odors or flavors. · Resistant to thermal contrast. · Easy cleaning: dishwasher safe (except the lid).