ROHO QS 
High Profile Quadtro Select Cushion

Positioning.
The QUADTRO SELECT Cushion allows for quick, simple position selection for every user while seated. By pushing the knob to the open position, you can adjust the user's posture to the desired sitting position. By pushing the knob to the closed position, you can maintain the desired sitting posture for maximum function.
Skin Protection.
Based on thirty years of research and client experience, our patented ROHO DRY FLOATATION technology provides unparalleled performance in facilitating blood flow by fitting, matching and tracking the shape of a person.
Stability.
The QUADTRO SELECT Cushion offers a new level of stability never before found in an air floatation cushion. Stability is enhanced by locking the air into place in each of the four quadrants through the simple use of the ISOFLO Memory Control, minimizing side to side or front to back motion. See how: