Peltier Rainbos 
The more common ribboned Peltier marble is the Rainbo. These are a more recent marble than the National Line Rainbo. As with the National Line Rainbo, they are a two seam design. The base glass can be a variety of opaque or transparent colors, depending on the particular type of Rainbo, and they all have a ribbon or pair of ribbons encircling the equator of the marble. There is a basic difference between a National Line Rainbo and a Rainbo. In a National Line Rainbo, the ribbons lay just on and below the surface of the marble.  In a Rainbo, the ribbons go into the marble, towards the core