This pack of marbles includes 3 cat’s eye spheres made from fiber optic glass. Marbles come in assorted colors. Each marble measures approximately 20mm in diameter. Cat’s eye is a man-made gemstone material that’s original purpose was for the telecommunications industry. 

Tiny hair-like strands of pure glass are drawn from glass rods by a high tech, fiber drawing tower.  Some of the glass fibers are more than a mile long and are wound on spools.  The strands are used in telecommunications to make photo optic cable that transmits light signals at the speed of light over long distances.Thousands of these hair-sized strands are pressed together under heat and pressure to form thick plates of fiber optic glass.  Lapidary artisans use this special chatoyant glass to cut and polish beautiful eggs, spheres, beads, jewelry and art objects.

• Quantity: 3 cat’s eye fiber optic glass marbles
• Comes in assorted colors (red, orange, yellow, green, blue, purple, OR black)
• These shooter marbles measure 20mm in diameter