HOTEEL 6.6×6.6 Canopy Tent Specification Information. Hexagonal pipe alloy steel. Using 420D Oxford fabric with waterproof strip sealing technology as well as PU coating, it can be 100% waterproof. Silver-plated coating blocks 99% of the sun’s rays. 4 x PA Coated Sidewalls (2 x Sidewalls with Window and 2 x Sidewalls with Zip), You can choose whether to install the sidewalls or not according to your needs. Hexagonal Leg Pipe Size. We offer 1-YEAR REPLACEMENT service! Can be used on concrete. For use on concrete floors, sandbags can be used for reinforcement, and wind ropes tied to bricks can also be used for reinforcement.