Newest compound, increased grip.  Fits Arrow Slot Saleen S7-R, Racer "Sideways" Riley & Dallara Daytona Prototypes, "Sidewways" Lancia Beta Montecarlo Group 5, "Sideways" Capri Group 5, Scalextric Jaguar C-X75 and others MAXXTRAC silicone rear slicks (PAIR).  Rounded tire sidewalls for realistic tire appearance and part number markings on the inner face of each tire - Super tough abrasion resistant rubber is suitable for Ninco and all other track surfaces.