Magnetic roller (non-interactive) with manual resistance level selector (3 stages). Equipped with a flotation system to facilitate balance during training. Foldable frame in 3 pieces for a small footprint. Incorporated handle for easy transportation. Rollers with typical parabolic shape. Adaptable to different bike sizes (adjustment in 11 different positions and variable bike wheelbase adjustment from 944 mm (37 inches) to 1144 mm (45 inches)). For compatibility with My E-Training App or third-party app, use Misuro B+ sensor (not included).