Soft-Tech® 4.5" x 8.5" are 100% virgin fiber material with longer, smother fibers than found in recycled products. Its lower lint levels prevent the contamination of wiping surfaces and less bleaching means fewer impurities in the form of sulfites and chlorides. The dispenser's anti-static split film cover over the opening protects the wipes from foreign matter. Made for use on electronics and precision parts, laboratory and optical instruments, and automotive uses.