double-layer beach umbrella manufacturer best quality,lowest price,delivering on time. double-layer beach umbrellasize:Φ2.1m/Φ2.5m/Φ2.7mpole:Φ38mm,aluminum,with zinc crank handle & zinc connector ribs:8ribs,14*20mm square type,aluminumfabric:235g waterproof polyester with airvent & flappacking:standard exported package,175*17*17cm