Tea Bags available: 1. Dual-Chambered tea bag: 6.0cm(L) x 7.0cm(W) bleached filter paper can hold tea ducts weighs from 1.2g to 3g with staple on it naked tea bag or with paper envolop, paper and plastic syntacticenvelop outside tea in this kind of tea bagwe carry so far: green tea,oolong tea, white tea andjasmine tea 2. FlatSingle-Chambered tea bags: 6.0cm(L) x 7.0cm(W) bleached filter paper can hold tea ducts weighs from 1.2g to 3g without staple on it naked tea bag orwith paper envolop teas in this kind of tea bagwe carry so far: green tea, black tea, oolong tea, white tea, jasmine tea andpu-erh tea 3. Pyramid or triagnle tea bag: nylon bag imported from Japan can hold tea ducts weighs from 2.0g to 5g naked tea bag orwith paper envolop teas in this kind of tea bagwe carry so far: green tea, black tea, oolong tea, jasmine tea andpu-erh tea 4. 5g flat single chambered tea bags: suitable for cold water brewing due to the larger amount of tea unbleached filter paper can hold tea ducts weighs from 5g to 8g without staple on it naked tea bag most suitable for resturant teas in this kind of tea bagwe carry so far: green tea, black tea, oolong tea,jasmine tea andpu-erh tea