The charcoal tweed covered cushion has been designed to improve your posture and to offer relief to those who suffer with a tender coccyx. The 11° wedge angle is accepted as producing the optimum sitting position and correct posture. The cut-out at the back of the cushion allows the coccyx to be suspended without pressure. This cushion can also be used in a car seat as an infill. Size: 14" x 14" This item is classed as a "Health and Hygiene Product" *Due to the risk of cross contamination, Eden Mobility are not able to accept the return of goods deemed as a "HEALTH AND HYGIENE PRODUCT", where the item has been left in the customer's possession for more than 12 hours. These items are susceptible to contamination by personal use, and therefore cannot be returned for refund under these circumstances.