The Original Takara Belmont Rollerball. The secret of the Rollerball?s even heat distribution is the circular design. Rotating 5 times a minute it distributes heat uniformly across the entire head thanks to the offset orbital axis. This unique rotation combined with deep penetrating far infrared rays promises accurate results every time and makes it suitable for every type of processing work. Powerful, Fast and Delicate, World?s First Infrared Thermal Sensor Used