This is the set of two DuraTrax X-Cons 1/8 C2 buggy tires.
Specs:
Size/Scale: 1/8
Tire Compound: C2 (soft)
Tire Diameter: Inner 3.1" (79mm), Outer 4.25" (108mm)
Tire Tread: X-pin pattern ideal for loose (dry and loamy), hard packed (wet), and abrasive (dry) track surfaces
Vehicle Type: 1/8 scale buggy
Width: 1.6" (41.5mm)