Mildew resistant vent. Heavy duty water resistant, UV treated polyester.Fits oval or rectangular tableswith chairs, measure your patio set overall dimension after putting all the chair close to your table or underneath the table and make sure this cover fits your patio set. In some case you can move out the chair to make the cover fits your patio set.Heavy duty vinyl with polyester backing.Can be used with or without umbrella. (hole is located in the center of the cover)Keeps table and chairs clean and dry.Tight string on the bottom with tight lock.Zipper runs from center to one end for ease of putting the cover on.Clean with a damp cloth.Size: 120"L x 86"W x 38"H OvalEspecially good for rectangle or oval table with chair in the end.