Earrings by John Field These Keum boo earrings are made from sterling silver and 24 carat gold and they measure 13mm x 37mm with a total drop length of 62mm. The technique used is an ancient Korean one, where the gold is fused to the silver at a high temperature. The inspiration for these earrings came from razor shells that we came across at the seaside. Because of the technique used the pattern may vary slightly on each pair. Features Primary Material : sterling silver Other Materials : 24ct gold Fitting Type : Continuous Hoop Dimensions (mm) : 37 x 13 x 3 One of a Kind : No Metal : 24ct gold and sterling silver Hallmarked : No Wire Material : sterling silver Cleaning InstructionsThese razor shell earring have been finished with a clear, protective, anti-tarnish coating.