With a 1.8m curved roof and lots of headspace, this Walk-In Gro-Zone Max Greenhouse provides plenty of room for you and your growing plants. It features four sturdy shelves made from strong steel, which each provide enough space for four seed trays or one grow bag tray - and if you have any particularly tall plants you need to make room for, you can simply remove the shelves. The reinforced PE cover has a zip-up door which can be rolled up for total access and clipped back easily, and when they're closed, your plants will still be kept well-ventilated thanks to the two handy vent windows, which allow your plants and crops to benefit from good aeration.    Features and Benefits Ample headroom - The curved roof design maximises head and growing room. Removable shelves -The shelves can be easily removed, allowing for a variety of plant heights. Zip-up doors - The zip-up door measure 1.8m high, opens up to the top and clips back for easy access. Two vent windows - For enhanced air flow an