Oil-only sorbents absorb oil, fuel and hydraulic fluid. Will not absorb water. Ideal for engines, hydraulic systems, holding tanks and catch basins. Recommended for use in bilge areas and on shop floors under lower units being serviced to minimize shop cleanup. Easy to store and use. White. 100% Polypropylene, bonded. Five pads absorb up to 1 gallon of oil-based fluids.