Fursys Flight T25 ChairFlight series pursuits the ease of use instead of complicated mechanism or function. W. A. T (Weight Activated Tilt) system makes you feel comfortable without extra control. Also it is convenient to set tilting angle simply with on off locking function. The W. A. T system is a simple torsion bar link structure which does not require additional adjusting but maintains self adjusted tension. The most frequently used height adjusting and locking function