With the Varier Furniture Gravity Balans Chair fully recline and relax into zero gravity weightlessness as the chair becomes one with your breathing. The backrest and adjustable neck-rest supports your upper body and keeps it perfectly cradled. When upright, the chair tilts the pelvis forward, encouraging an upright, neutral spine, which activates and strengthens abdominal and back muscles. It has fully functional 4 position chair takes you from tasking to zero gravity. It is made of beech wood and wool fabric.