Saltwater Wisdom Earrings by ErstwilderWe're the all natural variety. Of course, that doesn't mean we're not at least somewhat cultured. Please be aware that resin is akin to ceramic and glass, and therefore may be damaged if dropped or knocked. Keep your Erstwilder jewelry neatly tucked away in your gift box when not being worn, avoid contact with perfumes, lotions, water and excessive sunlight, and youll have your piece for years to come. Clean gently by hand.