Thoroughly fill sponge with water and wring well before use.Abrasive may cause fine scratches. Make sure to test it first in an inconspicuous place.Do not use on a stainless steel sink with a dirt-resistant resin coating. May leave marks.Replace with a new one when the rough surface has deteriorated and can no longer remove debris.Do not wring.Keep away from fire and other sources of heat.Do not use this product for purposes other than its intended purposes.