60 Day 100% money back guarantee. Case contains 20 sealed inner bags, each with 75 Texwipe TX2069 ThermaSeal™ 60 polyester clean-room wipers (total 1,500 wipes). 9 × 9 in., ISO Class 4 compatible, laser-sealed edges for ultra-low particle generation. Ideal for semiconductor, optics, medical-device and laboratory surfaces requiring minimal lint and chemical resistance. Ships from Carol Stream, IL in the original Texwipe corrugate at 27 lb. Quantity on hand: 3 identical cases — buy one or all. Keyword Block: texwipe, tx2069, thermaseal 60, cleanroom wipers, polyester wipe, 9x9 wipe, sealed edge cloth, iso class 4, lint free cloth, lab wipe, optical wipe