ErgoErgo is a great ergonomic seat at home, in the workplace, classroom, dorm, library, and everywhere else. It makes a great office chair, a computer chair, and a gaming chair, and is better than the ball for expectant moms. Make the ErgoErgo wobble seat part of your daily fitness routine and build core strength, back health, and balance. Active sitting keeps you alert and refreshed and helps you stay productive all day. Active sitting on ErgoErgo allows your body vitality and ease. With two feet flat on the ground, you can move gently through a wide range of positions. Engage your core, relieve your lower back, and enjoy greater abdominal spaciousness with deeper breathing. Micro-movements send more vital blood and oxygen to the brain, keeping the mind alert, aware, and awake. The ErgoErgo wobble seat is a recyclable technopolymer. The flat base allows for stability.