RPM Fitness 800 Manual Treadmill is a type of non-motorized treadmill. As the name suggests, this treadmill is manually operated, which means that the user powers the moving belt by walking or running on it. The RPM Fitness 800 Manual Treadmill has a sturdy build and is made from high-quality materials. It has a large running surface that provides ample space for users to walk or run comfortably.