X8 Drums X8-DIDG-SLD Slide Didgeridoo The X8 Drums Slide Didgeridoo is made from PVC (patent) with a fiberglass bell for additional durability and a resonant sound. You can dial in your pitch by expanding or collapsing the top chamber. Musical range low to high: C/C#/D/D#/E/F/F#/G/G#. The instrument is 36 inches when collapsed and expands to 61.5 inches. A beautiful hand painted tropical design is expertly applied to the entire instrument.