Flatface G4 professional fingerboard wheels.

One of the most iconic and widely used plastic fingerboard wheels on the market, the Flatface G4 is a staple and one of the most dependable and consistent wheels out there.

The Kraft Pro "S" is a new entry to the lineup, which is a soft-ish wheel that is very slick with very little lateral resistance. 

7.6mm x 5.1mm