Flexible bamboo with no bore - ID?

[thogoul]

just wanted to inform that I have a piece of special bamboo
coming from Andaman island (between india and thailand)
I don't know the specie. It has no bore and so is greatly flexible
maybe someone knew about this variety...

[Mark Meckes]

Hi thogul,
Could this be a rattan?
If you have pics, that would be helpful, especially of the plant.

Mark