Medium Cuff for Omron blood pressure monitor only for use with HEM-7120-E- M2 BASIC HEM-7121-E- M2 CLASSIC HEM-7131-E- M3 HEM-7270-E- MIT3 HEM-7280-T-E- MIT5 Connect HEM-7322-ME- M6 AC Key Features: - Medium cuff - Cuff fits arm circumference 22 - 42 cm - Compatible for the M2 Basic, M2 Classic and M3 upper arm blood pressure monitors