Great filter tips are an extremely important part of rolling the perfect joint. Joint filters keep cannabis and ash from getting in your mouth when you light up.

A joint is a simple device: the wrapping paper both holds the ground-up cannabis plant and channels smoke from the burning tip to the user’s mouth.

A joint tip is a hollow cylinder, often made out of glass and designed to be placed on, well, the tip of your joint (or blunt, or spliff). Oftentimes you can use them as a substitute for filters ...