This 10-position adjustable, Magnetic resistance unit provides a wide range of resistance options.Adjustable Magnetic resistance unit provides a wide range of resistance optionsStable foldable steel frameQuick release rear resistance unit and bike attachment.Stable, steel frame is foldable for easy storage and transportEasy to install and use with quick release rear resistance unit and bike attachmentMagnetic brake with 6 permanent magnetsDoes not include Skyliner riser blockItem SpecificationsResistanceMagnetic