Material: Made of environmental copper plated with 14K gold, hypoallergenic, nickel free, lead free, hand polish, smooth surface, safe to wear in daily life. The Bubble Initial Necklace Gold is adjustable, 17.7+1.96 inches long. The lobster clasp is sturdy. There are two chains in the package, you can match the chain you want according to your mood. The name pendant on the Bubble Initial Necklace has the same shape as the letter balloon. It uses micro inlay technology to embed Cubic Zirconia on the pendant for sparkle. Whether it's a birthday, Valentine's Day, anniversary or special occasion, it's an ideal gift for women to better express your love.