All our bannetons are measured from inside banneton. Because what matters is the actual volume of the banneton.
For example, our 23cm oval banenton share the same length as competitors' 25cm oval banneton.
Despite the top length, our bannetons are wider, deeper and hold more dough than many competitors'.
Our bannetons are made of natural rattan cane without the chemical treatment in the manufacturing process.
We only use stainless nails/staples in our bannetons, this significantly drive the production cost up, but the nails won't go rusty over the years.