Size: 18mm (female)
**This bowl fits into a 18mm male joint
This 18mm Female Bowl Piece converts your male water pipe to a female water pipe.. The female bowl is to be used with water pipes that have a 18mm direct inject.
The bowl piece also has small, decorative marbles, serving as aid in handling so you don't burn your fingers, as well as a built in screen to keep ash inside the bowl.