4mm crystal pearl beads. #5810 Swarovski Light Grey beads. These beads have a genuine Swarovski crystal core with a synthetic light grey pearl coating. There are five 16 inch strands per package (500 beads). These factory packs provide big savings! Pre-strung on color-coordinated cord (long enough to knot between beads without restringing). More durable than genuine pearls — get the glamorous look of oriental pearls at a fraction of the price! Questions? Call our friendly sales staff at 1-800-366-2156, or email us.