72 Pcs, 16mm (5/8" inch) approx. Solid Opaque Opal Glass Marbles 

Quantity : 12 pcs of each WHITE, BLACK, RED, YELLOW, GREEN and BLUE colors, total 72 pcs. Most of the games need 60 Marbles, but it's better to get few extra, since if even one marble is lost, whole game is ruined.

And also, you can mix match colors as far as quantity is same.

Please note, colors may vary a little due to monitor display settings.

Also, some marbles may vary slightly in color, size and shape since they are machine made. Some marbles may not be perfect shape and size since these marbles are game markers, not jewelry gems and pearls.

Also, the Red and Yellow marbles are painted with nail polish type paint to bring up Opaque color on Clear Glass Marbles. 

Chocking Warning : Not for children under 5 years or any age who tend to put things in their mouth.