Features and Benefits:Tough spunbond top layer won't rip, tear or fray UV resistant up to 12 months for long-term outdoor use without degradation Absorbs oil and fuels, NOT water Heavy-weight construction delivers greater absorbency for demanding tasks and large-volume cleanups Mats take on the properties of absorbed liquids - always take proper precautions when handling saturated absorbents;Refill your grommeted mat pad holder system with UV-resistant, oil-only pads.