Ocean in the Sunset Dolphin Custom Foldable Rain Umbrella Wind Resistant Windproof Floding Travel Umbrella Material: 100% polyester pongee waterproof fabric Constraction: 8 ribs made from strong fiber for extra support Design: unique,awesome and vibrant design to lighten up your mood Technology: use heat sublimation technique,protect from fading, long-lasting effects Size: each rib sized in 21.7 inch and consists of 3 section aluminium for flexibility