To care for this handcrafted Thor's hammer made of cattle bone, direct contact with water and strong cleaning agents should be avoided, as bone, being a natural material, can absorb moisture and become brittle. Occasional cleaning with a soft, dry cloth or a drop of neutral vegetable oil will maintain its shine and protect the material in the long term. Since each pendant is hand-carved, slight variations in shape and detail occur due to the natural characteristics of the bone and the individual carving process, making each piece absolutely unique.