1 kilo Bassoon tube cane, 

The diameter is 24-25mm.

Rigotti is easily the largest producer and supplier of Cane - and not only for Bassoon.
The cane comes from the area around the companies home in Cogolin, Var. Rigotti is medium hard to hard and the last few years harvests have been very consistent.

We think that Rigotti tube cane is always a good choice for Bassoon reed making.