Using this European vintage cast iron wall sink is easy. Just mount it securely on the wall according to the instructions. You can use it for washing hands, face, or small items. When using, avoid dropping heavy or sharp objects into the sink to prevent scratches. For maintenance, clean the sink regularly with a mild soap and water solution. Don't use abrasive cleaners as they may damage the cast iron surface. After cleaning, dry it with a soft cloth to keep it looking great and prevent rusting.