History making - 2011 ROAR Fuel Off-Road National Champion Revolutionary tread design for maximum life and traction Available in M2 (Medium), M3 (Soft) and M4 (Super Soft) compounds Next Generation Closed Cell Inserts included   Blockade Off-Road 1:8 Buggy Tires (2 pcs) Next Generation Closed Cell Inserts (2 pcs)   Height:   4.37" (111mm) Width:   1.68" (43mm)