Formula Four 99a Lock-In Wheels (Multiple Sizes)

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

LOCK-IN (SHAPE) 
Asymmetrical shape and design. Featuring a conical cut cut profile on one side and a straight edge "lock-in" cut on the other.