Like New! Waterproof💧💧💧 Stainless Steel 18K Gold Hypoallergenic Nickel Free Size: 16"+3" extender, Width 5.5mm. Closure: Lobster Clasp Designer Note: This beautiful, squared chain gold necklace is made of beautiful, delicate chain links crafted from high quality materials, giving it a subtle yet elegant shine. The squared design of the chain adds a unique touch to the necklace, and its adjustable length makes it suitable for many different necklines.