Specific Orangatang wheel driver.
These awesome and beautiful drivers are engineered in top notch AL7075 and anodized in dark black.
They are developed by UNIKBOARDS and are pure creation after several years in the DIY community.
A bearing fits inside the driver and is placed at the center of the wheel pulley which make this even more an amazing riding sensation. They require a minimal modification to the truck hanger and a quick drilling of the holes in the kegel wheels.