Hardware stores (in a number of countries, "shops"), sometimes known as DIY stores, sell household hardware for home improvement including: fasteners, building materials, hand tools, power tools, keys, locks, hinges, chains, plumbing supplies, electrical supplies, cleaning products, housewares, tools, utensils, paint, and lawn and garden products directly to consumers for use at home or for business. Many hardware stores have specialty departments unique to its region or its owner's interests. These departments include hunting and fishing supplies, plants and nursery products, marine and boating supplies, pet food and supplies, farm and ranch supplies including animal feed, swimming pool chemicals, homebrewing supplies and canning supplies. The five largest hardware retailers in the world are The Home Depot, Lowe's (both in the United States), Kingfisher of the United Kingdom, Obi of Germany, and Leroy Merlin of France. United States Larger hardware stores may sell small amounts of building supplies including lumber, flooring, roofing materials and fencing. Such stores are often referred to as home-improvement centers or home centers. There may be fewer hardware stores in the U.S. now than in years past, but according to the U.S. Census Bureau, there were still 14,300 hardware stores in the U.S. in 2005, employing on average 10 employees each. Even in the face of competition from large chain stores (commonly referred to as big-box or destination hardware stores, e.g., The Home Depot, Lowe's and Menards) new hardware stores in the U.S. are still opening all the time. In the U.S. there are four major nationwide wholesale suppliers to hardware stores. All four report more than $1 billion (US dollars) in sales annually. Three of them operate as retailers' cooperatives: Do It Best Corp, from Fort Wayne Indiana, True Value Company from Chicago Illinois and Ace Hardware from Oakbrook Illinois. Hardware store owners purchase stock in these suppliers and are "members" and "owners" as well as customers. A hardware store may choose to include the name of the cooperative in the advertised name of the store. The fourth nationwide supplier is Orgill, Inc., a traditional wholesale organization that does not operate as a cooperative. Hardware stores also purchase from a variety of regional wholesalers and specialty manufacturers. Some hardware stores operate rental businesses as part of the primary business, and rent for public use construction tools and/or party supplies. The major hardware cooperatives provide brand name rental advertising and support for hardware store owners including Just