Contour Kabooti Comfort Ring 3-IN-1 complete comfort seating solution. Comforts and reduces pressure on your tailbone. The Kabooti combines the best features of a donut ring, coccyx cushion and seat wedge into one complete seat cushion. the oval center comforts sore and sensitive areas, while the coccyx cutout relieves tailbone pressure and the wedge design encourages proper sitting posture. The cushion tapers from back to front, allowing it to fit beneath tables, desks and chairs, and its corner stability lobes improve seating balance.