Cold Air Inflatables are constructed of coated nylon fabrics and require a constant supply of forced air from an electrically operated heavy-duty blower. They can be installed on rooftops, lawn spaces, parking lots or off-site locations and are secured with heavy duty tether straps. Lighting systems can also be installed which makes this form of advertising effective 24 hours a day. Sizes range from 6 ft (1.8m) to 45 ft (10.5m) or higher.