All of Autobahn's products are tested and re-tested before release. Quality comes first. If it doesn't work for the team, it doesn't have the Autobahn name. The leader in high performance urethane. The Autobahn Appleyard Pro Signature Wheels are a quality skateboard wheel. A Mark Appleyard signature wheel. Graphics at one side. Available in colorways as seen below. Colors are limited to specific size. See colors below for correlating size. Sizes available as seen below. Wheels sold in set of four.