Material: High quality copper, it is hypo allergenic, it doesn't rust, change colour or tarnish and it is lead free and nickel free.Package: This necklace will arrive in a velvet bag ready for gift giving.Exquisite packaging, fast transportation, no need to worry about damage in the process of transportation.Size: this copper bicycle necklace pendant is 2.0cm * 2.0cm, and the chain length is 46cm + 5cm. Please forgive me for the error in manual measurement.Perfect for everyday wear and looks great with other necklaces. It’s also a good gift to someone who love bicycling.Design features: this high-quality copper bike necklace is very exquisite, surrounded by glittering rhinestones and exquisite bikes. The inscription: life behind bars, is a very meaningful gift for your friends.Gifts are never limited to time, only to express the most sincere feelings. Thank you for visiting CHOORO Jewelry. We are specializing in delicate jewelry making. If you like this item, we suggest you add it to your wish list now, so that we will inform you immediately once this product has a discount. Also, you can click CHOORO on the top of the title; you can find more jewelry with high quality and reasonable price. If any problem or advice, please contact us freely at any time. Jewelry Maintenance 1.Avoid touching chemicals 2.Avoid taking a shower while wearing 3.Avoid impact and scratch 4.Avoid wearing when sweating 5.Wiping with a soft cloth 6.Avoid wearing when sleeping.