Oxford Cloth + Anti-UV Fabric The surface uses high-density oxford cloth, durable, waterproof and dustproof. The inner layer uses silver coating, which can effectively block ultraviolet rays, extend the use time and effectively protect the elliptical machine. Reasonable design: the height at both ends is 170 cm and 50 cm, the length is 170 cm and the width is 70 cm. This size is reasonably and suitable for most makes and models of elliptical cross bike. Windproof Rope: There is an adjustable rope under the elliptical bike cover. You can tighten the rope according to the size of the bike so that the cover fits the elliptical machine perfectly and prevents the cover from being blown away by strong winds. Storage Bag:The package includes a cover storage bag.When you don't need a cover, you can fold it into the bag and hang it on the wall or exercise bike.