The hand-made Modern Masters Natural Sea Sponge Mini Roller (SS1030) the result of extensive research and testing. It is a versatile tool capable of an infinite variety of finishes. Use it to create random texture for a layered stone finish. See the ShimmerStone container for directions. Before using, soak the roller in water, then squeeze out thoroughly just before use. To clean up, wash the roller gently in clear water after each use; squeeze out excess water and let dry.