This triangular chainmaille necklace is made of lightweight aluminum. Aluminum is also hypoallergenic and will not tarnish. The chain that is connected to the triangle is stainless steel. This bracelet would make a great accent piece to any wardrobe. COLOR: Silver MATERIAL: This item is made using bright aluminum jump rings, stainless steel chain, and a stainless steel lobster claw SIZE: Measures approximately 15" in length. The length can be adjusted to fit your neck. The triangle is 2.5". Depending on how you want it to fit measure your neck size. Add at least an inch to your neck size which would fit like a choker necklace. For a looser fit select a few more inches for length. Message me for the length or any questions. UP KEEP: Keep your aluminum jewelry away from corrosive chemicals like chlorine, bleach, acids, and drain cleaning solutions to prevent your jewelry from oxidizing and losing luster. How To Clean: To clean wash with a gentle dish soap, like Dawn (not a harsh detergent), and water, then pat dry with a clean cloth. Also, it is recommended you wipe down the jewelry after wearing it with a clean cloth and store in a plastic bag when not in use.