Kind Notice: The umbrella is manual open/close, with 16 ribs. Additional details: Open width: 42 Inches（108cm） Closed length: 35 Inches（88cm） Shipping weight: 1lb(450g) A stylish and durable companion for all the rainy days, Lanker umbrellas will keep you dry under the most intense downpours. With a strong sturdy aluminum alloy rod and 16 aluminum fiberglass ribs. Never fear the wind again! Our durable frame is designed to be rainproof and windproof - no flipping inside out. Environmental protection! Using recycled polyethylene terephthalate (RPET) fabric, our umbrella canopy reuses old plastic bottles that would otherwise end up in a landfill. Generate less waste and reduce your impact!