Detailed Product Description About Product: Black and columnar, it has a good mechanical density with highly pored structure, not easily breakable. Large surface area, strong and rapid absorptive capability, all makes it suitable for eliminating unpleasant odors and harmful gas.Packing Material:PET/PE compound non-woven fabric, high packing intensity.Specs.: (Weight/per packet)5g, 10g, 20g, 30g ...