Bangles by Latham & Neve One continuous piece of silver, hammered and twisted and bound by a tiny 18ct gold ring of its own. Made to be worn! Features Primary Material : silver Other Materials : 18ct gold Inside Diameter (mm) : 65 and 68 One of a Kind : No Hallmarked : Yes Cleaning InstructionsCLEANINGWe suggest silver dip or a silver cloth for cleaning our work. Use a cotton bud in silver dip for recesses & an old soft toothbrush for matt & rough textured areas. A small abrasive pad (Scotchbrite) can also be used on dry surfaces for a matt finish. Alternatively try the following method.Line a glass vessel with aluminium foil, add 1tsp of bicarb of soda and1tsp of salt,add 1/2 ltr of boilingwater. Place jewellery in solution for30 mins making sure that the silver is in contact with the foil. Remove, rinse and dry.