Combine functionality and style with this Bicycle Wheels Cover  Choose from black, grey, ferris wheel, blue feather, purple and fire and ice  Choose from medium and large  Ensure your wheels are free from rust and dust  Made from polyester and spandex Simple and easy assembly  Ideal for keeping walls and floors clean when storing bikes indoors  Buying Options:  17.99 pounds instead of 39.99 pounds for the medium cover - save 55%  20.99 pounds instead of 49.99 pounds for the large cover - save 58%