There was a thread posted earlier regarding the Teal Rhino Pro.  Several people were wondering what the cover/core combination was.  I was very familiar with the Rhino line of bowling balls having thrown almost all of them in the past. However, I am old and my memory isn't what it used to be.  The Rhino originally was a black urethane ball with a pancake core.  Following the Black Rhino came the Gray Rhino and Blue Rhino.  Both of these were also pancake weight blocks. The Blue Rhino was a sky blue color.  There was also a Cobalt (dark) blue Rhino released as well.
   The first reactive Rhino which was the "Rhino Pro" line was the Purple Rhino Pro.  That ball had a light bulb shaped core and a very skid/snap type reactive coverstock.  The Teal Rhino Pro was next in line and it was not polished like the Purple Rhino Pro.  It also had a light bulb shape for the core.  These cores were very popular with all of the manufacturers at this time.  The next step was the Rhino Pro Gold which inverted the light bulb core from the previous two releases.  After that there were others released.  The Rhino Pro SE I believe was one of them.  At this point the manufacturers started to go insane releasing ball after ball constantly.  

    I hope this helps.  If any of this information isn't 100% accurate, I'm sure the sharks will let me know!

Good bowling everyone.