KEY DETAILS 21"w x 21.4"d x 28.25"h. 100% polyester. PVC backing. Water-repellent and fade- and mildew-resistant. Hook at the bottom keeps the cover securely in place. Covers sit slightly above the ground to allow for air flow to ensure that moisture is not trapped under the covers. Phthalate-free. Sold individually or as a set of 2. Accommodates West Elm's Porto Aluminum Outdoor Dining Side Chair (sold separately). Made in Mexico.