Even if ink dries on the brush, it can be re-softened by wetting so that it rinses off the brush easily.Wash your brush after use. Do not return ink to the bottle. Do not mix with other inks. Not intended for use by children.Replace cap firmly after use. If the bottle is dropped or subjected to strong impacts, the spout or other parts may be damaged.Be careful not to swallow accidentally.Do not use for any purpose other than as intended.