Opal 4mm Melon Ridged Round Beads 4mm - These single hole melon beads can be used in place of other 1 hole round beads in your designs. The ridges of the hand crafted Czech glass bead help to capture the light and color of these beautiful beads. Melon Ridged Round beads come in a variety of brilliant colors and finishes. They measure 4mm with a .8mm hole size. Sold in a packs of approximately 100.s