When you light the bowl of your pipe and light up, there's nothing worse than getting a mouthful of burnt ash and ill-tasting plant matter. This 20-piece set of brass pipe screens will help you avoid all that unpleasantness. 

These are high-quality pipe screens made of brass. They're 20mm wide which means they'll work with practically any pipe or bong. You can never have too many screens so stock up and stash some away.