RoyalRoom is a premium grow tent's brand that uses high quality materials for their products. RoyalRoom tents are made of 95% reflective MYLAR 600D thick fabric and 19mm durable frame. The growboxes are 100% light tight and easy to assemble. In compare to other brands those tents have reinforced connectors and have large number of vents, which are COOLTUBE friendly. You can choose between CLASSIC and HIGH series. Strongly recommended!