This handcrafted piece is made of bronze or brass material. The chain is solid stainless steel.
*Bronze/Brass jewelry is safe to wear unless you have a nickel allergy. Some symptoms of a nickel allergy are red eyes, itchy skin, rash, dry patches on skin, skin discoloration and even blisters.
If your nickel allergy is severe, avoid wearing any types of alloys that contain nickel. If your skin turns green after wearing a necklace or earrings, it most likely includes some amount of brass in its metal composition. Brass is actually an alloy of copper and zinc, so if you're allergic to brass you are likely allergic to copper as well.
For cleaning the bronze or brass, just mix a paste of baking soda and vinegar and rub it on the item then rinse thoroughly with water.