This open portable greenhouse utilizes lightweight, yet sturdy, PVC coverings built over a powder-coated steel frame. The combination of these two elements is an incredibly durable final product that can be moved from location to location, fitting in tight spaces as available. The zipper door allows for easy access and ventilation while it also can be sealed in to maintain the internal climate. Perfect if you want to reduce excessive heat or cold and keep your seedlings safe throughout the seasons. Start your backyard gardening today with this Outsunny greenhouse.