Palram Snap & Grow 8' Series Hobby Greenhouse - 8 x 20 x 9 Silver Crystal clear virtually unbreakable polycarbonate roof and walls panels that provide 100% UV protection and over 90% light transmission directly onto plants Polycarbonate panels provide protection from UV rays 164 sq feet growing space and 6.8' of head room Includes double wide doors, four adjustable roof vent, rain gutters and lockable door handle 5 Year Limit Warranty