Spitfire Formula Four 54 mm - 101D Conical Full

Size: 54 mm
Hardness / Durometer: 101D (101a) — fast with balanced grip and slide 
Shape: Conical Full — wide riding surface with cutaway sidewalls for extra stability and control
Material: Formula Four urethane — highly abrasion-resistant and flatspot resistant
Performance: Fast, stable ride with smooth predictable slides for street, park, and transition skating