RPM marbles by Chuck Pound.

"RPM" Marbles

RPM Marble by Chuck PoundThese marbles are named RPM because they give a sense of spinning at high speed (High RPM). Many RPMs have some aventurine in them. RPMs are almost always coated with clear glass, except the smallest ones.

5/8 inch RPM Marbles

 

I make RPMs ranging in size from 5/8 to 1-3/4 inch. The price ranges from $20 for a 5/8" RPM up to $80 or $90 for a 1-1/2 inch.

RPM Marble - Sirius Marbles by Chuck PoundRPM Marble by Chuck Pound

 

Images last updated: 17 Aug 2008