The ST-1503 Single Twister is a commercial use manual machine designed to aid in weight loss. Measuring 26x19x51 inches, this machine is perfect for gyms and fitness centers. Its simple operation mode makes it easy to use for all fitness levels. The ST-1503 Single Twister comes with a warranty, ensuring the customers satisfaction. While not adjustable, this machine is perfect for those looking for a consistent workout routine to help them achieve their weight loss goals.