ProMeet the only neck training system with 4-in-1 benefits for recovery, prevention, posture, andmobility. 33% lighter than its predecessor, Iron Neck 3.0 Pro features a dynamic tension braking system with haptic feedback, unmatched in applying resistance to head rotation. Get the neck pain relief and mobility you need to live your life uninhibited.Whether you’re an elite athlete or just battling the daily grind, Iron Neck 3.0 Pro is an essential tool for fixing poor posture and preventing neck and back injuries over time.