The Smojo Permanent Steel Smoking Screen is an invention that smokers have needed for decades. If you are like us, then you've lost countless glass and metal screens to the trash can and ashtray over the years. Smojo screens stay in place with a wire anchor and it blocks ash and build-up with a simple two-pronged grid that covers the hole in the bottom of your bowl but still lets smoke through. You'll smoke easier and have a cleaner pipe from using a screen.