Sector 9 Bolt Quad Complete Skateboard, Blue, 9.0-Inch x 30.25-Inch Rides on 8.375" Gullwing Missions with 61mm 78A Sector 9 Nine Ball wheels with PDP Abec 5 bearings The Bolt Quad's shape offers a wide solid base with kick for added maneuverability Swallow tail and concrete recycled glass clear grit top 7 ply cold pressed maple in a Concave mold with fully dipped color