Colored Mop Head: This will improve absorbency and durability while reducing the break-in period required by cotton blend yarn. The increase in performance and product durability is directly proportionate to the increase in longer staple colored synthetic fibers. Our blend is constructed with 30% more synthetic fiber making it a better value than cotton yarn. Cut-End style mops are not machine launderable. Standard packaging is 12 units per case. Pricing is per unit and order quantity below is per unit. We will accept orders in less than case quantities.