1) for 60-80 Bass accordion The width of 6 cm distributes the weight of the instrument so that it is easy on the back 1 pair of real black leather shoulder straps very good wearing comfort Upholstery: artificial leather and Codura: soft foam padding, width 6cm Longest shot 87cm Shortest setting 65cm 2) for 80-120 Bass accordion The width of 6 cm distributes the weight of the instrument so that it is easy on the back 1 pair of real black leather shoulder straps very good wearing comfort Upholstery: artificial leather and Codura: soft foam padding, width 6cm Longest setting 120cm Shortest shot 74cm.