The Normatec arm attachment set features premium materials and 5 overlapping zones to target the hands, wrists, biceps, triceps, rotator cuffs, lats, and base of the neck. The arm attachments are sewn with triple reinforced stitching for unparalleled durability, mold to your unique body for a perfect fit every time, and include integrated tubing and connectors for ease-of-use. Includes one left arm attachment and one right arm attachment.