Coccyx Cushion 18 W x 16 D x 3 H Emergency Phone Pager Systems Knee High ( Open Toe) MSHQ 1885 Knee High ( Open Toe) * Beige * 20 30 mmHg * Large Full Calf * Ankle Circ 2kg) *Weight Capacity Those who suffer from tailbone pain find the coccyx cushion the most comfortable due to the cut out at the back of the cushion * This cut out design significantly reduces pressure on the tailbone * Ergonomically designed to provide support while reducing direct pressure on the tailbone * Made with premium quality self molding memory foam that reacts fast to provide instant relief and comfort and provides slow memory foam recovery for longer support * The removable soft polyester and rayon cover zips off easily for machine washing while the transport strap provides convenience for travel * Hypo allergenic *