Confidence Bicycles Pro Indoor Bike Trainer with 7 Magnetic Resistance Levels and Riser Block Pro quality bike trainer with 7 levels of smooth magentic resistance Heavy duty steel frame, max weight up to 330lbs This bicycle trainer includes a riser block, and folds away for easy storage Dimension: 21.5" x 18.5" x 14.4" Cycle year round no matter what the weather has in store