This is a pair of Schumacher "Micro Spike" 2.2 1/10 Rear Truck Tires. The Micro Spike is most suitable for indoor carpet tracks.

Note: These tires do not include inserts. 

Schumacher Tire Compounds:

• Blue: The hardest available, a general purpose, hard wearing compound.
• Green: Medium Compound. Slightly softer than Blue, generally used as an all around compound and works well in both wet and dry conditions.
• Yellow: Soft Compound. The racers choice! The benchmark tire compound for all others to try and beat. Excellent choice for dry conditions.
• Silver: Super Soft Compound. The ultimate dirt/dust tire