Zenport SH7005-ZD Foldable Aluminum Cold Frame Greenhouse is suitable for seed planting and protecting fragile sprouts from the elements. The clear polycarbonate cover allows full sun exposure while keeping out the cold. This is an affordable greenhouse with a perfect size 3.3-Feet (100cm) by 1.6-Feet (50cm) by 1.3Feet (40cm) for the backyard gardener. Comes with 1 adjustable vent.