Super Skinny yet super strong - the high quality PURIZE® X-Slim Size activated carbon filters in trendy colors for a smooth smoking experience. Features: Contents: 250x PURIZE® Xtra Slim Size yellow activated carbon filters. Dimensions: ø 5.9 mm x 26.9mm Filling: coconut-based activated charcoal Packaging: Resealable reserve pack PURIZE® activated carbon filters allow for a fresh, dry, and aromatic smoking experience that is gentle on your lungs! As both ends are ceramic, there is no direction of insertion or threading to be observed. PURIZE® filters are suitable for all types of roll-your-own cigarettes. If you prefer filters for an extra strong draw and good twisting material, you can also find PURIZE® Regular Size activated carbon filters at Goodvibe. The high-quality coconut-based activated charcoal is sustainably produced in Germany from environmentally friendly raw materials. Good to know: activated charcoal, also called medicinal charcoal (in Latin Carbo medicinalis), is a fine-grained porous carbon with a large internal surface. This adsorbent is used among other things in chemistry, medicine, drinking water treatment, sewage treatment as well as in ventilation and air conditioning techniques.