Rule, as you can adjust the amount of weed you smoke. It's basically 2 telescopic tubes, sealed at the bottom with a rubber piece, the inner tube stops the weed from going further, and is where the smoke goes, it's got a small glass screen built into the end. You can push it in or pull it out to fit as much weed as you like! It's like a very versatile chillum.
20 bucks at my headshop.
