Whether you're a casual smoker or a connoisseur, these will be the best bong bowls for any setup. The 14mm size and versatile design make it an excellent fit for almost any bong. The Invincibowl is an unbreakable bong bowl that features a built-in screen that operates as an effective ash catcher, especially when combined with their revolutionary Invincipole downstem. The unique design makes the product easy to clean, and it will fit snugly in your existing setup. The Invincibowl is an unbreakable bong bowl made of aerospace aluminum, plus, they come in a variety of striking colours!