Spitfire Formula Four Conical 54mm 99d

Size
The Formula Four Conical skateboard wheels are lightweight and poured in Spitfire's rider approved urethane formula. This urethane lasts longer, withstands more abuse and performs better than the competition. 

Set of 4 Wheels
Wheel Profile - Medium
Surface - Smooth
Key Features - Formula Four Urethane
Wheel Shape - Conical Shape
Durometer - 99a