The Normatec Arm Attachments provide a dynamic air compression massage all the way from your shoulders to your fingertips. Normatec Arm Attachments do not include control unit, includes pair of arm attachments only. Attachments compatible with Normatec 3, Normatec 2.0 and Normatec 2.0 Pro control units. | Hyperice | | Normatec 3 Arm Attachments (Pair | Black | Best Buy