With high-tech HydroKnit fast-absorbing material, WypAll X70 cloths are made of soft pulp fibers, bonded to a polypropylene base sheet for absorbency and tear-resistance, making them suitable for removing dirt, oil, grime and solvents in a variety of industrial and manufacturing industries. They are so sturdy that they can often be used more than once (once you've used them a few times, they're disposable). They are designed to clean surfaces and tools, making them a must-have for the HVAC, automotive, manufacturing and industrial industries.