The galvanized steel roof is weather-resistant and durable, and can be used for all seasons-Features water gutters and 4 drainage holes on 4 corners, prevent rainwater accumulation-The double roof design keeps the inside cool and comfortable while enhancing stability-The 5" thick aluminum columns offer a solid and stable structure-The expansion screws help fix the gazebo on solid ground for better wind resistance-The reinforced triangular structures help enhance overall stability-The inner visib