Gorilla Grow Tent 2' Extension Size 8x16Every Gorilla Grow Tent already includes a complimentary height extension kit that gives you the ability to increase your growing height from 7 to 8. With this 2 foot height extension it you will now gain the ability to have a tent that is 8, 9, or even 10 in height, by using either just the 1 kit or the 2 kit, or combining them to make the ABSOLUTE TALLEST GROW TENT KNOWN TO MANKIND!!! Benefits to raising the roof include: 1. Significant Yield