A glass pipe screen filter helps keep pipes cleaner. They prevent resin buildup, enabling glass pieces to be cleaned easily. Ash will rest on the pipe screens, so the inside of the bowls are easier to clean and repack. Glass pipe screens also enhance the smoking experience by preventing clogging and pull-throughs; you can fully enjoy your herbs without worrying about some of the inconveniences that not having a screen creates. You get 5 Assorted Glass Screens $1.00