Fit Cuffs – Performance Upper V3.1 includes a Pressure Gauge & two cuffs that has the same width as the original Arm Cuff as state-of-the-art exclusively developed for Blood Flow Restriction (BFR) Exercise. The primary improvement with the Arm Cuff V3.1 is the convenient single-handed reverse attachment.
Fit Cuffs works by inflating tough yet pliable cuffs by means of a solid pressure gauge and sturdy metal quick-disconnectors. The Arm Cuff V3.1 will fit about all arm sizes (20-50 cm / 7.9-20 Inch). One-Size-Fits-All.