Smart Garden Classic 4 Tier GroZoneIdeal for germinating seed, propagation plants, growing and protecting fruit and vegetables or simply extending the growing season. Key Features: Max Flexibility Extra strong, rigid design, easily removed shelves for growing through Max Shelves Durable powered coated steel frame and shelves Max Strength high density reinforces PE cover Max Access Front Zip up panel fully opens and easily clips back allowing total access Max Ventilation 2 Vent holes to