Shelter Logic 10' x 8' GrowIT Box with Peak Style Roof and Easy Flow Roll-Up Side Vents Greenhouse, Feet Powder-coated 1-3/8 in. steel frame Roll-up side panels and half moons screen vents at each end provide optimal airflow and temperature control Triple-layer, heat bonded ripstop translucent cover Patented metal ShelterLock stabilizers for added strength and durability Peak design for growing plants, starting seeds and extending growing seasons