Made from 100% polyester pongee waterproof fabric. Using heat sublimation technique to prevent discoloring, long-lasting effects. 8 ribs made from strong fiber for extra support. Semi-automatic, easy automatic opening function and need to manual close. Umbrella Dimensions: Closed Length: 20.47 inch, Coverage Diameter: 42.52 inch. Hefty rubberized handle provides a comfortable sturdy grip, sized in 20.47 inch.