Screen Filters are a very useful piece for every bong or water pipe lover as these small pieces of round steel help in better smoke and avoid the burnt ashes. Smoking a glass pipe or water pipe bong or hand pipes without a screen filter will definitely give you a bad smoking experience due to the burnt ash. These screen filters bong accessories can be used multiple times but one should know how often it needs to be changed, as excess use of one filter can also give you a bad bong hit experience. The pack contains 10 Pack of 15 mm screen filters and each pack contains 5 screen filters in it, i.e a total of 50 screen filters.