ADJUSTABLE 18K LARGE CHAIN NECKLACE WATERPROOF The Mason chain is classic and timeless statement piece ever jewelry lover should own. Wear this beauty with a crisp white button down for a smart look or with a little black dress on a night out. The Mason necklace is designed with a adjustable extension so you can wear her higher as a choker or lower, Also available in silver Materials: Stainless steel, 18k gold plated Measurement: 9 mm width. Length 15.75” + 4” extension Total Length: 19.75” Closure: Lobster clasp Additional Info:  * Hypoallergenic * high polish finish * Eco-friendly: We use sustainable metals and recycled gold * Tarnish resistant and waterproof: No worries about color fading here. With proper care, this piece will last for years! See our care section for more details All of our gold jewelry is plated with recycled gold. Each piece is coated using the highest grade technique, which is made to be 8 times more durable than traditional gold-plated jewelry.