The unique XMAS Edition of the Slim Size activated carbon filter from Purize, the filter for the Christmas season. Of the  smallest but equally strong  Activated carbon filter for all the one  slim design  prefer. The Purize activated carbon filters enable a  cool, dry, aromatic smoking experience that is easy on your lungs! In the  Resealable supply pack of 50  with the XMAS design there are filters with high quality  Activated carbon  Coconut based from environmentally conscious raw materials and sustainably produced in Germany. Suitable for all types of self-made people! Since both end caps are made of ceramic, there are  no insertion or screw-in direction  to be observed.