- Formula Four Blackout 54mm 99a Skateboard Wheels by Spitfire.
- Spitfire's latest Formula Four urethane design.
- Spitfire's wheel shape for proven speed and control with extra grip.
- Unmatched flat spot resistance.
- Includes 4 urethane wheels.
- 54mm sizing, 99a durometer rating.
- 100% urethane.
- Made in the USA.
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