This Charles Bentley 6 x 6.1ft Greenhouse is a fantastic and practical addition to any garden to grow and preserve your plants and home grown fruit / vegetables all year round. This greenhouse has a 1-1.2mm Aluminium Frame, a zinc steel base and 4mm Hollow Polycarbonate windows. It features adjustable roof vents for introducing fresh air to the greenhouse and a sliding door for easy access. Features include: Hot dipped galvanized zinc steel base, adjustable roof vents, sliding door gutters, roof frame and end caps.