High quality components include. Deck: Lightweight & strong 7-ply birch construction. Trucks: 8.0 Krux K5 DLK trucks featuring inverted kingpin with shaft nut. Wheels: Smooth riding, durable wheels w/ either 83a hardness (super-micro, micro, & mini) or 95a hardness (mid-large sizes) high-rebound urethane. Grip tape: High quality professional grade grit and adhesive. Bearings: Durable high speed precision steel bearings with oil lubricant for easy rolling. Full (Age 10-14) 8 x 31.25, 13.75 Inch Wheelbase. 8.00in x 31.25in.