This product features a professionally finished mechanical trackball with a diameter of 38.0 mm. The top of the trackball has three mouse buttons that can be used to quickly navigate between web pages by left and right clicking. Specially designed to operate in harsh environmental conditions, the trackball is made of stainless steel, dust and moisture protected (IP54), and resistant to mechanical, chemical and physical influences. It has a USB or PS/2 interface. Thanks to the mounting holes, it can be easily mounted to any equipment from the inside, providing a more secure installation. It is compatible with Windows and Linux operating systems.