The smallest of the Purize filter line, the Xtra Slim Size active charcoal filter, comes in a resealable and convenient 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 and provide you with a fresh, dry, and aromatic smoking experience. The filters are suitable for all rolling methods! With both caps being ceramic, there is no insertion or rolling direction to observe. All PURIZE® filters are made from environmentally friendly raw materials and are "Made in Germany". Color: Recycled, brown Purize Xtra Slim Size active charcoal filter dimensions: ø 5.9 mm x 26.9 mm