• Formula Four 55mm 99a Skateboard Wheels by Spitfire.
• Spitfire's Formula Four urethane design.
• Spitfire's Tablet wheel shape: straight cut profile, thin riding surface, speed and control performance.
• Unmatched flat spot resistance.
• Includes 4 urethane wheels.
• 55 sizing.
• 99a durometer rating.
• 100% urethane.
• Made in the USA.

FORMULA 4 - Unbeatable lasting performance SPITFIRE urethane. Fast as hell. Long lasting, abrasion resistance, smooth anti-stick slide with a controllable grip. Guaranteed.

TABLET (SHAPE) - An original SPITFIRE shape. Straight Cut Profile. Thin Riding surface. Lightweight, Quick and Responsive.