Tucson Series - Palram-Canopia Polycarbonate Gazebo Sturdy and durable structure protects during harsh weather conditions Unique leak-free and screws-free roofing system Rust-free, powder coated aluminum frame and laser cut galvanized steel connectors Shatterproof, UV protected 6 mm twin-wall polycarbonate roof panels Treated bronze glazing, blocks harmful UV rays, transmits natural sunlight yet providesample shading Built-in gutter system for effective water drainage & collection (dia. 5 cm / 2\') Easy DIY assembly kit pre-cut panels, pre-drilled profiles, and all screws included Compact, efficient package to save storage space and shipping costs