DESC: This portable, pop up greenhouse is perfect for extending your growing season. Nine screened vent openings allow for optimum air circulation while hardening off your plants. Closing the vents will promote and maintain high humidity levels desirable for a superior growing environment. The clear PVC material is UV resistant for longer life and is constructed with long life in mind. Compact so transport, setup and takedown have never been easier! Includes shade cover, stakes, and high wind tie downs.