Do not bend or poke your polymer clay components. Store away from humidity and dust. Store separately to avoid scratches from sharp objects, preferably in a ziplock or cloth bag. Pieces sealed with resin might develop scratches over time and therefore must be stored carefully. We use a mix of stainless steel, brass and 925 sterling silver metal components for our jewellery. Brass and sterling silver may show signs of tarnish over time with handling but can be brought back to life by cleaning with a soft cotton cloth or silver polishing cloth.