This marble is 40mm in diameter with gold dichroic sparkle twists and glow in the dark powder in a double helix in the core! The pictures are of the exact marble you will receive.
It is hand made made of Soda Lime glass and annealed in a digitally controlled kiln. All glass used is from the Effetre factory in Murano, Italy. I use this glass to make my colored glow in the dark glass.
