Our double walled tea tumblers in 6 unique, eye catching designs. An insulated sleeve is included to protect your purchase and insulate during travel. Check out our newest design, Desert Cactus, for 2023! Each tumbler includes a dual style filter - use the basket and discard the leaves OR keep the leaves in the main chamber and use the screen only. Important use and care instructions Glass is fragile, and must be treated as such. To get the most use of your glass tea tumbler, follow the following guidelines * If you are bringing it outside or want more heat retention, use an insulated jacket for your tumbler. It will give you an extra layer of protection and additional heating time.