Doctor Who Tardis Earrings, Police Box Hanging Silver Earrings, Show your love for Doctor Who with these Tardis earrings. Each Dr Who earring is created with a domed round glass tile that magnifies the image underneath. The glass tiles are attached to silver plated bails and attached to silver plated surgical steel wire earrings. -- the glass in each earring is round and 1/2 inch across (12 mm across) -- earring wires are silver plated surgical steel