Side drilled tiny donut beads are made from Sodalite and are triangular in shape. Stock has lots of nice deep blue tones lightened with well mixed white Calcite. Donuts measure 12mm to 13mm from the tip to the opposite flat side and the center hole is about 3.5mm in diameter. Note from the donut with the pin that the side drilled hole may not be exactly in the middle of the donut hole & some hole edges may appear to be notched. 5 Donuts per package.