Shop Towels (Pack of 100, 13 X 13 Inches) Commercial Grade Machine Washable Cotton Washcloths White Shop Rag - Perfect for Auto Mechanic Work and Bar Mop by Utopia Towel (White) Set includes 100 auto mechanic shop towels in white measuring 13 by 13 inches each Woven with 100 percent ring spun cotton Machine washable, tumble dry on low For best results wash separately on first use to minimize lint Made from natural materials and no harmful chemicals and synthetic materials are added, which is safe for you and your family