Master made a good amount of 7/8 to one inch marbles. As many solid color or colored clearies at 7/8 to one inch, as any other company, of comparable size and age. They produced good numbers of 7/8 to one inch marbles like a weak sparkler, just not as many colors as sparklers. Plus some larger cat eye types. That seedy glass or the small bubbles seem to show up in most all the larger Master marbles.