300 Round Clear and White Marble Swirl Acrylic Beads. These Acrylic Beads Measure 12mm, or Aproximately 3/8 Inch. Each Acrylic Bead Has a 5.7mm Hole. This is a Bulk Value-Pack of Acrylic Beads in a shiny, Clear and White Marbled Swirl. These are Great Craft Quality Acrylic Beads for Jewelry Making, Beading, Necklaces, Bracelets and Hobby and Craft Projects. Notice: Items sold through Craft Making Shop are intended for use and wear by persons aged twelve and above..