your vin. bag is crafted from high-quality brass, designed to develop a unique patina over time. to keep it looking its best, use your terry cloth Vin. dust bag to gently wipe away fingerprints, dust, and light marks.for a deeper cleaning, a soft cloth with a mild brass cleaner can help restore its shine. avoid harsh chemicals and excessive moisture to preserve its natural beauty. with a little care, your bag will only get better with time.