Bullnose Contoured Outdoor Chair Cushion, 3"Hx18"Wx18"D, SPECTRUM DOVE SUNBRELLA Small: 2"H x 16"W x 15"D. Includes ties. Medium: 3"H x 18"W x 18"D. Does not include ties. Large: 3"H x 19.5"W x 19.5"D. Does not include ties. This item qualifies for free-shipping on Amazon.com! Free Shipping promotion ends May 5!