Constructed from medical-grade borosilicate glass, the Higher Standards Premium Glass Filter Tips make smoking easier, cleaner, and much more enjoyable. Sleek and durable, they deliver filtered, clean-tasting smoke while acting as a protective barrier between your fingertips and the heat. A pinch blocks particles from entering the mouth, keeping hits smooth and pure. This 6-pack of Higher Standards Premium Glass Filter Tips can be cleaned to crystal clear perfection with Higher Standards ISO Pure and Pipe Dreamz.