The CM-execution of the CorrectSit comes with a bigger back support. Supported by a special suspension system, the back support easily fit in the correct place of the lower back and provides utmost comfort to the user. This model also enables the users to tilt their seating position and fasten it into any position according to the user's comfort. The instrument is designed to provide a relaxed and mainly an active posture of the back. Numerous users can use it greatly in the workplace, dental laboratory practice, ok room, drawing, optometry and such like.