66FIT ORIGINAL COCCYX CUSHIONAre you sitting comfortably? The 66fit coccyx seat cushion has been designed to help relieve pain and discomfort caused by a sore, bruised or damaged coccyx. Our original wedge coccyx cushion features a horse shoe shaped cut out which should be placed at the back of the seat. This allows the user to sit right back in their chair with their coccyx or tailbone suspended above it thereby avoiding any direct pressure on the coccyx and reducing stress on