b'chain selectionsSILVER CHAINS1.8mm Thick Curb1.2mm Standard CurbGOLD CHAINS1.4mm Thick Curb0.9mm Standard CurbSTAINLESS CHAINS2.4mm Ball2.2mm Curb1.8mm SnakeAll of our jewellery in sterling silver, yellow and white gold comes standard with an 18 curb chain. You may also upgrade any chain to 20, 22, or 24 lengths or thick option.Stainless steel jewellery comes with an 18 stainless curb or snakechain. It can be upgraded to 20, 22, or 24.'