From the manufacturerPro Trainer Bicycle Indoor TrainerRain, snow and inclement weather is no excuse anymore! With the Pro Trainer by Products stay riding anytime you want, all year round. Train safely, away from high traffic areas. The easy change resistance controller allows you to choose your training with up to 5 levels of resistance. The wide base design gives extra stability and a smooth, quiet ride. For the beginner to the training professional, this product is perfect for year round fitness. About this item STATE OF THE ARTAs soon as you begin to pedal, the ultra QUIET internal magnet creates resistance. You can easily increase the resistance by shifting the gears on your bike! EXTREMELY PORTABLEThe PRO Trainer is extremely light and it can be folded down like an ironing board for travel and storage MAXIMUM STABILITYOne of the most robust and sturdy stands on the market. Extra wide legs and a sturdy frame makes this the trainer the pros choose QUIET MAGNETIC MECHANISM - The quiet internal magnet lets you pedal smoothly at up to five resistance levels. Simply shift gears on your own bicycle to quickly change your bike workout's difficulty level. FOR MOUNTAIN AND ROAD BIKES - With its solid construction and with extra-wide legs, this robust bike trainer offers stability that lets you confidently power through intense cycling workouts like a pro. FOLDABLE FOR PORTABILITY - Transport your bicycle during long-distance road trips to your desired cycling spots, and use this travel-friendly bike trainer as a stationary bike stand when taking a break from a scenic biking trip. FRONT WHEEL RISER BLOCK INCLUDED - To fully support your bike wheels, this mountain bike accessory comes complete with a sturdy and contoured riser block. PRODUCT DETAILS - Material: Metal. Dimensions: (L) 15.75" x (W) 18.5" x (H) 21.5". QUIET MAGNETIC MECHANISM - The quiet internal magnet lets you pedal smoothly at up to five resistance levels. Simply shift gears on your own bicycle to quickly change your bike workout's difficulty level. FOR MOUNTAIN AND ROAD BIKES - With its solid construction and with extra-wide legs, this robust bike trainer offers stability that lets you confidently power through intense cycling workouts like a pro. FOLDABLE FOR PORTABILITY - Transport your bicycle during long-distance road trips to your desired cycling spots, and use this travel-friendly bike trainer as a stationary bike stand when taking a break from a scenic biking trip. FRONT WHEEL RISER BLOCK INCLUDED - To fully support your bike wheels, this mountain bike accessory comes complete with a sturdy and contoured riser block.