8 ribs made from strong fiber for extra support. Hefty rubberized handle provides a comfortable sturdy grip, size: 11.42 inch. Auto open close system, can operate it with one hand in one second. Umbrella Dimensions: Closed Length: 11.42 inch, Coverage Diameter: 37.4 inch. Some umbrellas feature an anti-UV black coating with the design underneath in the same automatic foldable design.