The Krown KPC Skateboards are wider and stronger than the rookies, this model is the perfect size and fit for someone who is getting better at skating and looking for an upgrade from the rookie models. The KPC series features a modern concave which allows for not only comfort, but more pop making it easier to learn tricks. All Krown skateboards arrived assembled and ready to ride straight out the box. The KPC model includes heavy duty Aluminum 5.0 trucks, 52mm 99A high-rebound urethane wheels, precision speed Abec 7 bearings, high tensile Philips head mounting hardware, and 80 grit black grip tape. Each component meets the industry standards and are a common choice of skaters worldwide.