Highly absorbant. Rinses fast! Brilliant beyond the sink. Fits perfectly in the hand. Strong for floors, gentle for windows. Performs like a natural sea sponge. Family-owned since 1908. This superior quality polyester sponge material is the result of years of research, development, and field-testing. It provides great absorbing and cleaning efficiency, very similar to natural sponges. To maintain your sponge for a longer life, wash it thoroughly in warm water before and after each use. Great for cleaning large spaces like floors, walls, cabinets, counters, and outdoor furniture.