Ricta Wheel Dynamics 56mm Clouds transparent blue urethane with light blue core, debossed and pad printed lettering. Ricta Clouds are the most diverse cruiser wheel family in skateboardin Wheel Diameter (Millimeters) 56.5Wheel Durometer/Hardness 78aRoad Surface (Millimeters) 22Wheel Width (Millimeters) 34 Ricta Clouds 78a Skateboard Wheels Translucent Blue 56mm