It is based on a stainless tube which is popular with the AISI 304 brand for its physico-chemical properties. The wooden component is made of a Stable Wood. Stable Wood has an incredibly rich and warm sound due to its wood grain and the character inherent in real wood. However, it will not crack or warp as Stable Wood is impregnated all the way through with resin, making it stable. You don't have to worry about your health.
Set: Leather cord (100mm longs, 2.5-3.0mm thick) and mouthpiece, mounted on a silicone ring.