Product Description: 600 series dust - free paper Description: 600 series dust - free paper from wood pulp 55 and 45 polyester blend together, it is highly absorbent, clean, durable characteristics. Avoid chemical adhesives in the mixing process, thereby increasing its bi - directional strength and reduced chemical impurities. Specifications: Model size packaging, Wip-0604 4 " *4 " 1200 PCS / bag, 10 bag / box Wip-0606 6 " *6 " 300 PCS / bag, 20 bag / box Wip-0609 9 " *9 " 300 PCS / bag, 10 bag / box Wip-0612 12 " *12 " 300 PCS / pack of 10 bags / box, and accept sample.