Finum’s Slim Tea Filters make it easy to turn high quality loose teas into convenient bags. The bags themselves measure 4 ¼”x3” with a folded 2” base and a 2” top folding flap. The extra-fine mesh contains even the finest tea leaves and the large size works for individual cups or entire pots. One box contains 100 Finum Tea Filters. Disposable Tea Filters are made of abaca pulp, cellulose, and sealing fiber. They are oxygen bleached and biodegradable. Made in Germany.