Xterminate's fly screen curtains are perfect for use on doorways, patio doors, french doors, conservatories, mobile homes and also in caravans, campervans, and motorhomes while allowing a cool, fresh air flow during the summer months. This functional fly chain screen effectively prevents flying insects from entering your home or business. Also great for commercial use. These Xterminate fly chains are manufactured with premium, high-quality, heavy-duty aluminium to prevent weathering ensuring years of use with an easy walk-through and no snags.