Cork foosballs for French style tables (Bonzini & RP). These are also great balls for learning foosball - especially if you find yourself playing on entry level tables that came with super slick un-pinnable balls! Try the Yellow-Died Cork Footsballs or traditional natural/raw cork balls. All cork models shown above have a diameter of 35 mm.
The Yellow heavy (17g) died cork ball is the same one used by serious French style players forever. Discounting the new improved for international play slicker harder non-cork ITSF-B ball!