- Solid and Durable: This folding exercise bike is made of high-quality steel pipe, with large load-bearing and double X-frame support structure, making the bike more stable- Professional Exercise: Using our indoor stationary exercise bike, you can not only get a cardiovascular workout to burn calories but also tone your muscle strength in your arms, legs, waist, and buttocks. Applicable height from 61"-70.75"- Functions: Magnetic exercise bike with adjustable seats in 5 different positions with backrest provide different comfortable positions while the flywheel supports 8 levels of adjustable magnetic resistance keeping the stationary bike difficult for you.