According to the Canada-based manufacturer Inter-Sphere Productions Inc (ISPS), the new Capz en-closure seals are ideal for most types of liquid container, ranging from bottled water, alcohol, juice and dairy packages, as well as oil and household cleaner containers. "The Capz design is such that it can be produced very small, for juice boxes of ink refill bottles, and very large, for wine barrels and 45 gallon drums," ISPS president John Coulson. The cap seals come in a variety of designs, but all feature a patented closure that hermetically re-seals the product after use. As well as keeping the product fresh, the Capz retains the liquid in a container, so prevents spillage and contamination, he said. The one-piece caps all have a funnel attached, to allow customers to pour out some of the product without having to remove the lid, he added. Coulson added that the seal on each Capz is also tamper resistant, particularly useful if the product is harmful or expensive, and customers can purchase two more safety measures if necessary. In terms of Capz for beverage products, Coulson claims that the size of the opening allows a certain amount of air to flow in as the product flows out. "This reduces burps, spits and gurgling of ingestible products like pop, juice, beer, wine, water, alcohol and the like," he said. The beverage Capz also come in a range of speciality designs, featuring space capsules, orbital shuttles, movie action figures and sports heroes. In terms of the design materials, Coulson said it depends on the individual companies that wish to license the product, but that they will most likely be "plastics and light weight materials." Several important food manufacturers are already interested in the product, including Campbell Soup and Proctor & Gamble, he said. An Israel-based packaging firm operating in China is also interested in taking the Capz product into the Asian markets, and a Taiwanese plastics company has requested the licensing rights to manufacture and sell the product in the New Zealand, Australia and East Asian dairy and juice markets, he added.