carbony slide didgeridoo 2 sections played by DAPHYD from OMNIA
http://en.folkfriends.com/Carbony+Sli...
Carbony™ Slide Didgeridoo plays high A to low C with engraved anodized aluminum trim with molded stainless steel mouthpiece featuring termite spiral groove. Comes with a lifetime warranty.
The two section has tubes that start out at 1.875″ and the bell ID of 2″ the mouthpiece is tapered with a spiral groove starting at 1.25″. The steel can be custom fit but the standard ID is 1.25″.