Arbor certified completes Certified Arbor Completes are fully assembled skateboards built using select, high-end components that complement the performance and geometry of each of our shapes. Each package takes into consideration: the angle, geometry, and size of the trucks; the size, shape, and diameter of the wheels, the hardness and rebound of the bushings; the placement of wheel wells; and all aspects of shape. When buying an Arbor, look for the symbol, and insist that your complete comes with components approved by Arbor Skateboards.