It has the softness of natural cotton and the strength of rayon. It can be thoroughly wiped off fine dust and dirt. Wipe off fingerprints and sebum, wiping off the finished product in the cleanroom, and wiping off machines and utensils. Precision machine factories and laboratory equipment. Sheet size: 9.8 x 9.8 inches (250 x 250 mm). Case Quantity: 100 packs. Color: White. Color: White. 4 sheets. 4 sheets.