Designed In London, Made of Alloy A allergy free material. Plated with High Quality Polish for Long Lasting Finish. It's literally all smiles and rainbows with this set, crafted in gold-tone metal. Each pair features a heart, pearl, or smiley face charm, the perfect main event for your ear stack. In compliance to the British and European Union Nickel directive which requires a very low level for Nickel in all jewellery. Great as a gift for yourself or the ones you Love.