Care per Erstwilder: 

Please be aware that resin is akin to ceramic and glass and therefore may be damaged if dropped or knocked. Due to the use of high quality silver-plating in our brooch clasps, tarnishing and oxidization can occur, producing a black and gold discoloration. As with all silver products, you can simply restore it using a silver cloth. Keep your Erstwilder companion neatly tucked away in this box when not being worn, avoid contact with perfumes, lotions, water, and excessive sunlight and you’ll have a trusted friend for years to come.