Sewing Cushion The Gypsy Sit Upon 13 in Sewing Cushion To Sit Upon TGQ006 Sewing Cushion The Gypsy Sit Upon The Gypsy Sit Upon Seat Cushion 13" Diameter, Purple. Sit comfortably for hours while quilting, sewing, reading, driving and more. Softly inflated flexible disc prevents fatigue and reduces pressure on the tailbone. Helps relieve lower back pain, strengthens core muscles and improved posture. Nubby texture allows cooling air flow, and promotes improved blood circulation. Durable purple rubberized material remains soft and pliable. One size fits all!