4mm clay beads. Measures approximately 7.5" with lobster claw clasp. Viva beads are made from a smooth clay that is layered to create a design. This layered clay begins large in size and is slowly whittled down while maintaining the integrity of the design. It is then hand rolled into beads, baked, cooled and strung into endless unique creations. Because the beads are 100% handmade, you will notice slight variations in the size and shape. No two are exactly alike.