Helps improve posture, and restore and maintain correct ergonomic seating. The slight incline helps promote proper posture while performing daily tasks. Removable coccyx pad makes this cushion comfortable even for those with tender tailbones. Precision-cut foam. Available in blue, black, gray and burgundy. 15½”x15”, 3¾” to 1” high (39cm x 38cm, 2cm to 3cm high)