Everyone's favourite cool characters, this pair of penguins are sure to put a smile on your face every time you wear them. Made from sterling silver stamped with a 925 metal mark, these penguins measure 7mm x 9mm, with the pin of the earring measuring 0.85mm wide. With a front to back distance of 9mm and a weight of just less than half a gram, these studs are secured in your ears by butterfly backs.