Set of 4 - Indoor / Outdoor Solid Black Square Universal 3&rdquo; Thick Foam Seat Cushions with Ties for Dining Patio Chairs - Choose Size (21" x 21") Made from outdoor safe fabric Fun ~ Stylish ~ Comfortable Set of 4 - Universal 3" Thick Foam Chair Seat Cushions Indoor / Outdoor Solid Black Fabric Suitable for use both indoors and out