Unger's Professional 14" Scrubber Refill Sleeve is a replacement refill sleeve for Unger's 14-inch Scrubber, extending the life of your window cleaning tool. The refill sleeve is made from Microfiber, holding more water and effectively cleaning windows gently. An integrated scrub pad provides extra cleaning power. Professionals and consumers look to Unger cleaning tools for quality and durability. construction, or workmanship.