This half growhouse is perfect for patios or balconies, gravel or even standing on a patch of earth & can be moved around your garden. Strong aluminium frame is glazed with 3mm toughened safety glass (which also provides superior light transmission & heat retention!). It doesn't need to be attached to a wall &, freestanding, the glass back allows light to get to the plants at the rear ensuring better growth. Its sliding panels provide a little or a lot of ventilation, as required &, unlike some other models, there are no hinged doors to bang in the wind. Aluminium structure with 25 year framework guarantee.