A cleaning device (2) for in-situ cleaning of metal strings (50) on a stringed musical instrument comprising a manually bendable, resilient laminate having a first planar portion and end portion extending out of the plane of the first portion, the laminate comprising a layer of plastics material (4) sandwiched between two layers (6,8) of a plastics micro-fibre fabric. The device (2) allows the metal strings (50) of, for example, a guitar (52) to be readily cleaned in-situ while on the instrument to maintain the brightness of tone of the string. A method of manufacturing the device is also disclosed.