Water Resistant💧 Brass 18K Gold Hypoallergenic Nickel Free SIZE: 15.5" + 3" removable extender. Width 4mm Designer Note: Our Tennis Choker catches the eye with its shimmering and glittering design. This necklace is perfect for special occasions or for adding some sparkle to your everyday wear. A necklace made to make you feel like royalty! Style Tip: Pair this necklace with its matching bracelet!