JJSporting Multi Launcher, T - Shirt Cannon, PM 2.6 68 Cu in with bottomline. 2.6 fits Tennis Balls and Shirts - Aluminum Tank and Aluminum Barrel, Reusable, Air or CO2 Under 6 pounds, 150 PSI max, CO2 for multiple launches, or also with compressed air. One launch per charge when using air. Easy to maintain, designed for 1,000's of launches, and years of service. Easy push button launch. Perfect for cheerleading, events, rallies, shows, and concerts. One launch per charge, a dozen launches from a onboard 12 oz tank. Fill to less pressure to adjust range, or indoors. Adjustable range from 20 feet to 125 feet. No PVC pressure holding parts. Shatterproof construction. Aluminum tank, fiber reinforced valve, and polished aluminum barrel. New 12oz CO2 tank included! (all tanks ship empty by law.) Allow 5-7 days for assembly, testing, and for the paint to dry completely before we ship! We typically paint Blue or Green at random. 3" barrel standard.