Prevents Snagging, Ripping or Tearing 15" x 18" (38 cm x 46 cm) The Tide High Performance Wash BatTM is the safe and effective way to care for all of the clothes you care about. The fine weave of our OptiMeshTM material prevents hooks and wires from piecing through, causing harm to other clothes in your gentle cycle, yet allowing water and detergent to penetrate freely for proper cleaning. All seams and zippers are covered with smooth nylon material to further protect your garments from possible snags or tears. So go ahead and machine wash you favorite lingerie, blouses, sweaters and active wear with confidence. Just check the label to ensure the garment is made of washable fabric and follow manufacturers' instructions for laundering. If a garment is not colorfast, do not wash (test by dipping corner into water).