African disc beads, handmade in Ghana  broken glass beads.  Also known as Krobo beads, after the ethnic group famous for making them using traditional techniques
disc/ doughnut spacers, which are really useful in jewelry/jewellery or other projects like bag charms and key rings
a mix of opaque black and white glass beads were used. Instead of going to waste, broken glass seed beads are turn into new beads

approximate size 10-11 or 12mm diameter 2-3 mm thick, bead hole 2.5-3 mm
variations in size occur due to hand-crafting
Each bead is unique, due to hand-crafting

pack of 40 single beads which will come off the strand