12mm Uranium Glass Marbles (Seconds)

A lovely bunch of vaseline glass marbles, available in yellow, and in various quantities.  12mm in size, these are smaller than regular marbles so do grab a ruler and see for yourself.  These make great fillers for larger glass vessels.  Provide some UV light and they really POP!  These marbles are 'seconds' quality so they may be wonky/cloudy/with bubbles - perhaps all 3!