Specifications: Color: Red black Main material: Steel + PU Overall dimension: 43.5" x 18.5" x 43.5" (L x W x H? Drive system: Belt drive Adjustable seat height: 29.5"-33.5" Adjustable handlebar height: 38"-42" Adjustable handlebar: Up / Down Adjustable seat: Up / Down Back / Forth Flywheel weight: 18 lbs Weight limit: 331 lbs Net weight: 54 lbs Assembly required Box Qty: 1(May vary by batch)Package includes: 1 x Exercise bike(Need 2xAA Battery not include) 1 x User guide Measurement: 38.98" x 32.68" x 9.84" -Thickened steel pipe construction is durable and sturdy enough for maximum load capacity 331 lbs -18 lbs Heavy-duty flywheel and felt resistance brake pad make the ride smoother and safer -Come with a bottle holder and aluminum water bottle for water drinking more conveniently -LCD electronic display for easily keeping track of motion parameters such as heart rate speed and calorie -Adjustable handlebar and saddle comfortable leather padded seat perfect for both adults and kids -Comfortable foamed rubber handle bars extend the duration of your workout -Caged pedal will prevent feet slip and give more support while pedaling -Belt drive mechanism is strong grip non-skid ensure the riding smoother and quieter -2 small scroll wheels in the front bar for easy movement and transportation -Strengthen your exercises by changing the resistance workout to tone up and build muscles