Material: Stainless steel, it is lead free and nickel free.Stainless Steel is hypo allergenic, it doesn??t rust, change color or tarnish. Measure: hand stamped disc charm: 2cm (0.79inch) diameter, guardian angel charm: 2cm (0.79inch) * 2cm (0.79inch), immitation pearl: 0.8cm (0.31inch) diameter, dog tag pendant: 4cm (1.57inch) * 2.5cm (0.98inch), bangle diameter: 6.5cm (2.56inch) adjustable. Each new driver keychain/bracelet comes packaged in a velvet bag, ready for gifting for for a new driver, friends, child at college, parent. Never drive faster than your guardian angel can fly keychain/bracelet is the perfect accessory to remind those new drivers to remain safe while gaining the freedom to operate a vehicle! The guardian angel keychain/bracelet also is the perfect gift for your child on his or her sweet sixteen.