This is Dynamicfb "mini" fingerboard wheel which features a smaller diameter and a wider riding surface that allows for perfect grip on all surfaces. The wheels feature the 64D durometer cruiser wheel urethane material that feels perfect for indoor and outdoor surfaces. There is a high precision single bearing locked in place to ensure no bearing slip.
Wheel diameter - 6.75mm
Fit every kind of professional fingerboard truck.
4x wheels included.