The extra-large canopy tent is ideal for a big patio event!Pre-installed metal frame is fairly strong for stable use,while it also offers a tool-free assembly which can be finished by 2-3 people. As long as you push the button hub by 1 hand,cover and fix the top canopy with hook and loop fasteners,then a sun shelter will be ready for use. More importantly,the canopy is made of 300D oxford cloth with a silver-coating,which has a CPAI-84 flame-retardant certification and ensures ideal water resistance as well as UPF 50+. Based on individual needs,the tent can be adjusted at 3 heights,9.8/10.3/10.8ft,16-20 people can share coolness together. Outdoors,you can utilize offered metal stakes and ropes for extra fixation.