Collapsible Tube Caps fit on a collapsible tube and are generally symmetrical. A majority of the collapsible tube caps that McKernan carries are a 22/400 finish, but there are many other finishes available to pair with a collapsible tube. These caps include both continuous thread and dispensing caps including snap-top, with a sponge applicator, or a twist open and close. Many also come with a heat seal liner. Collapsible tube caps are used in pharmaceutical, personal care, cosmetic, automotive, pet care, and food and beverage industries.