This is for either a 3mm, 4mm, or 5mm 18k Gold plated (Gold PVD plated, which is thicker and more durable) Stainless Steel Rope chain necklace from 20-30inches. Available Lengths: Recommended for best sizing to measure your length using a measuring tape or a string and then hold it against a measuring tape 20"-22 in - Women's and Teen's Necklace 22" - 30" in - Men's NecklaceRecommended size:-We suggest Necklace lengths 20"-22" for women and teens , and 22"-30" inch for Men.-3mm is unisex-4mm and 5mm is usually worn by Men . Weights: 12 to 28 grams (depending on length and width) Features: 1.Never Fade Never Tarnish 2.The Rope chain is one of the most popular style chains! 3.These elegant chains are handcrafted in 18k Gold plated Stainless Steel. Solid and heavy feel. The frames measure 20-30 inches in length and 3-5mm in width. These chains securely lock with a durable lobster clasp. 4.High quality stainless steel Plated in Gold has high resistance to rust, corrosion and tarnishing. It will be very durable.