These chambered pipes have a unique function: you can unscrew the middle portions to reveal small areas for stashing your extra herb!
Why do this? It's a pipe style that goes way back! Once your herb is stowed away, as you smoke your pipe, all of that smoke flows through those chambers - resining up whatever good stuff you already have in there!
Give it a shot and see why this pipe style has continued to exist for nearly 40 years!