The smallest of the Purize filter line, the Xtra Slim Size active charcoal filter, comes in a resealable and handy storage bag. It's also ideal for travel, as the filters can be kept airtight and waterproof. Purize's Xtra Slim Size active charcoal filters significantly reduce the amount of pollutants absorbed, providing you with a fresh, dry, and aromatic smoking experience. The filters are suitable for all rolling methods! With both caps being ceramic, there's no insertion or rolling direction to observe. All PURIZE® filters are made from ecological raw materials and are "Made in Germany". Color: Blue Dimensions of the Purize Xtra Slim Size active charcoal filter: ø 5.9 mm x 26.9 mm