|Our filters are made of manila, cellulose and siegel fibers, guaranteeing true-flavor filtering. They are chlorine free and biodegradable. No glue. The double-fold bottom of the filter gives the tea leaves enough room for their flavor fully unfold. Our filters give all tea enthusiasts a chance to enjoy tea in their individually preferred manner. The filters have an especially long fill-in-flap, making the filling process easier. The flap can also be used to fix the filter at the rim of your tea pot by closing the lid over it.