Each set of Blasani® Flasks Set contains: two 32oz, two 16oz, two 8oz and one funnel. Those flasks are reusable, easy to fill, heavy duty, collapsible. Flasks are made of durable, puncture resistant, odor proof and taste proof clear polyester. Blasani® Flasks stand up when filled and are flat and can be rolled up and put in your pocket when empty. The Flasks have positive seal spouts are freezable and perfect for any non-carbonated beverage. The Blasani® Flask are non-metallic, undetectable and ideal for concerts, stadium events, sports fans, air travelers, golfers, hikers, hunters and skiers.