Creature Skateboards pre-built completes feature wider shapes for easy foot placement and shorter wheelbases for easy turning with a sizing guide that makes buying a new entry level complete straight forward for beginners of any age or gender. High quality components include: Deck: Lightweight & strong 7-ply birch construction Trucks: Strong, lightweight cast aluminum trucks w/ either 85a cushions (super-micro, micro, & mini) or 90a cushions (mid-large sizes) for easy turning. 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. Sizing guide: Super Mirco (Age 3-6) 7.25 x 27, 10.5 Inch Wheelbase Micro (Age 4-8) 7.5 x 28.25, 11.25 Inch Wheelbase Mini (Age 6-10) 7.75 x 30, 13 Inch Wheelbase Mid (Age 8-12) 7.8 x 31, 13.5 Inch Wheelbase Full (Age 10-14) 8 x 31.25, 13.75 Inch Wheelbase Large (Age 14-16+) 8.25 x 31.5, 14 Inch Wheelbase