The Heavyweight, oil-only Mat Pads, 15” by 19” in size and Lightweight, oil-only Mat Pads, 15” by 17” in size, are made of highly economical, contractor-grade single-ply meltblown polypropylene for oil clean-up on land or water. They are highly versatile for containing drips, leaks and responding to larger spills. White absorbents pick up petroleum-based fluids, paints and non-water soluble chemicals while repelling water.