50 x diabolo beads in Chalk White/Dark Travertin

This is a pack of 50 Chalk White / Dark Travertin diabolo shaped glass beads which are very similar to pellet beads. They measure 4mm by 6mm and were made in the Czech Republic. These beads have a slim section in the middle which allows them to interlock when they are strung.The Czech number for this colour is 03000/86805.