The Lotus pipe stem is hard black anodized aluminum for cooling the vapor. The pipe stem comes with a screened bowl. Clean the stem by soaking in alcohol or using an alcohol soaked pipe cleaner.
The long stem is 6 1/2 inches in length and easier to use if you have any issues with focusing on close objects.
i've been using the lotus with the wpa and my bubbler, but this is a different experience for me. like the weight and hand of the pipe. rip it with the lotus and nothing but smooth clouds.