Bullnose Round Outdoor Chair Cushion, 2"Hx18"DIAMETER, BLACK SUNBRELLA Small: 1.5"H x 15" diameter. Large: 2"H x 18" diameter. Our No Hassle Return policy gives you peace of mind to enjoy the purchase in your home for up to 45 days. This item qualifies for free-shipping on Amazon.com! Free Shipping promotion ends May 5!