This two-tier Garden parasol is more effective than a classic design, preventing wind build-up underneath as it allows air to gently flow in and out. A solid mainframe that brings sophisticated feet to your garden. Eight bamboo ribs provides extra strength between canopy and main structure. Bamboo ribs could bend to a certain degree without breaking due to its better toughness. Easy to open and close this large patio umbrella is elegant and resistant to rusting.