AmyRT 4mm Upscale Titanium Steel Wheat Chain Necklaces for Men & Women, 28" Material: Titanium Steel.Nickel free & allergy free. Width: 4mm. Length available from 16" to 30". Highly polished, shines in every turn. Very durable to wear, resistance against wear & tear & oxidize. Matched with delicate clasp, suitable to wear alone or with pendants.