Polyester Classic Tufted Chair Cushion with Ties, 18&frac12;" x 18" x 3", in Black Damask Outdoor tufted chair cushion with ties,18" x 18" x 3" Durable, affordable polyester fabric lets you update seasonally Polyester chair cushion is weather-resistant and UV-protected to reduce fading Versatile knife-edge chair cushion adds comfort, color and style without bulk Style: Black Damask