Purize Activated Charcoal Joint Filter Tip - BIG Size (14mm)The Regular Size is still not big enough for you? You want to smoke a real donut with your crew? Then the new BIG SIZE activated charcoal filter with a diameter of 14 mm is the perfect activated charcoal filter for you. The BIG SIZE comes in a pack of 7 in a practical bag. Using our activated charcoal filters reduces the absorption of harmful substances and gives you a cool and dry smoking experience. As both end caps are made of ceramic, there is no