This silver-tone chain necklace is perfect for everyone in any situation. The smooth snake chain is made of water-resistant stainless steel, making it safe from sweating, swimming, and showering, so you can put it on and leave it there, regardless of your activity. Finish: Silver-tone Length: 16 + 3 in. extender / 40.64 + 7.62 cm. extender Size: 4MM Closure: Lobster clasp Material: Stainless steel Style Number: 19340