This video is about how to make a screen for a bong from household items. You will need iPod ear buds (they have a good screen on them), wire cutters, and a stem and bowl to put the screen in. You use the wire cutters to cut the plastic around the ear bud screen in order to separate the top piece from the rest of the ear bud. Then you remove the metal ring and paper on the underside of the screen. Next you remove the white plastic around the screen. Now you have isolated the screen. Place the screen in the slit of the stem and bowl, and you're done.