Sparkling Czech Crystals make these rondelle bead spacers simply elegant. With a large 3.75 diameter center hole, these work with thicker stringing cords and chain. The concave sides have a wavy edge to allow a perfect fit with adjacent beads and add sparkle to your designs; use them alone or in groups to create custom effects. These versatile pieces are equally at home in earring designs, bracelets, and necklaces.