Size: 17cm + 2cm Extender  Material: Titanium Steel + 18K Gold Plating   All of LE LUXE Jewels pieces are safe for sensitive skin and are made with hypoallergenic, lead & nickel-free materials.   Please refer to our Care Guide here for instructions on how to care for your jewels and to ensure the longevity of your pieces.    Jewellery care cards are provided with every order for further assistance!