This Japanese loose tea filter strainer bags measures 9.5 cm x 7 cm. 60 tea filter bags per pack. These Japanese tea strainer bag does not affect the flavor of the tea. Clean and easy disposal. Easy to use for tea, coffee, soup stock, or herbal medicines. The tea filter bags can be boiled. High quality tea filter polyester bags that has a silk like cloth feel to it. Easy to use in a tea cup or teapot. Just put the loose tea in the tea filter strainer bags and sit it in a cup. Materials: Polyester, Polyethylene, and Polypropylene. Made in Japan.