The training is not only good for the leg muscles, but also exercises the back and shoulder areas. Exercising regularly can also strengthen the cardiovascular system and increase stamina and lung capacity. Use a curved form and practical folding mechanism which makes them incredibly compact.With the the training , you will benefit from similar type exercise features that are typically offered on larger and more expensive exercise bikes. Product Specifications: Product Name: Exercise BikeMeter display: time / speed / calories / total mileageProduct size: 62×44×21cmProduct weight: 10kg