Glass screens are made to work with glass pipes, glass bubblers and glass water pipes. Simply drop the screen into the hole in your bowl piece and pack your preferred legal herb on top of it as you usually would. A glass screen won’t ruin the flavor of what you’re smoking like a metal screen. The colorful knobs provide a small enough gap that smoke can easily move through, but keeps your herbs (and its subsequent ash) out of your precious pipe. Just be sure to remember to remove the screen before you ash the piece into an ashtray or trash can! Why buy glass in the first place? Be a pro and get a glass screen to go with a glass smoking pipe. They come in fun varying colors, including clear, yellow, light blue, dark blue, green, and red. Be sure to specify your color preference in the comments/notes section of your order!