Dimensions: width 13m， highly 15mmChain length: 390mm+55mmWeight: 3gMaintenance: clean with soft cloth， avoid chemicals， avoid friction， avoid wear when sweating pr bathing， take off when sleeping.1.Stainless steel material _ Anti-allergic activityEnvironmental protection. The appearance is shining and extraordinary.2.Fine craft_ IP rose gold platingRose gold is an alloy of gold and copper， with very fashion and beautiful rosy color.