Can be used on most diatonic or piano accordion.Description-Color:Black-Material:Cowhide,PU-Size:51.50X4.00X0.90cm/20.24X1.57X0.35in This accordion harness is designed to provide the maximum comfort for you to play heavy accordion standing, especially for long hours The back strap adds nice support and makes your shoulder pads not slip off your shoulders even when you play your accordion walking The accordion shoulder strap not only protects the accordion, but also a good assistant for your practice and performance If you own multiple accordion models, this accordion strap would be a great choice This accordion harness designs to provide the maximum comfort for you to play heavy accordion standing, especially for long hours ASIN B0H5VZZN5B Size One Size Color Name One Color Item Weight 1.32 pounds Item model number Lawsen Package Dimensions 0.39 x 0.39 x 0.39 inches