Your Mamba Metals' piece is crafted to last a lifetime, so each piece is cast in solid sterling silver, bronze, or 14K gold. Naturally occuring tarnish may appear over time due to contact with skin oils, household cleaners, soaps, and saltwater. Simply use a soft cloth to gently wipe away any tarnish and remove any remaining impurities with warm water. Dry you piece thoroughly before storing it. Do not use abrasive cleaners, steamers or ultrasonic machines.
Your piece may feature an oxidized/blacked finish to enhance the contrast of the design. Over time, the oxidation layer can polish away, depending on the amount of contact it receives from abrasive materials and chemicals. This evolution of your piece is expected, so don't fret if you notice your piece is gradually changing and building character over time.