| Hi Valeria,
the one you posted looks like "bamboo corals", at least what's that they call it here, having the brick red color. You can see the pores in bamboo corals. They usually come from Thailand (or at least thru Thailand).
20mm bead strands are possible but not very often. Even coral "wands" are sold in my area, coming from Mindanao.
__________________
______Perlas
o-o-o E Unio Plurum o-o-o |