Slick Shotz - 50 Flask Kit The Only Heat Sealed and Legal-to-Carry Flask (TSA Compliant) Each kit holds up to six fifths - (50) 3oz disposable/reusable flasks Battery Powered Heat Sealer (Batteries Included) Easy to conceal great for cruises, sporting events, concerts/festivals, nightclubs, the beach, golfing, and more! https://www.youtube.com/watch?v=NxItyaob9x0