Neck, shoulder and back pain/fatigue often causes slouched sittingAs a result the head protrudes too far forward placing additional stress on the neck and shoulders, also known as "Forward Head Posture"Neck Vitalizer M3TM is an effective device for correcting this malfunctioning posture and reducing neck and shoulder stresswithin seconds of lying on Neck Vitaliser M3TM you will notice the neck drop backwards, the chest open up and shoulder and neck muscles relaxHand pump for inflation and customization