RollerMouse Pro3RollerMouse Pro3 puts mouse controls right at your fingertips so you can type and mouse around without reaching. Its optical input roller spins and slides on a horizontal shaft for easy mouse pointer movement. Pressing the roller acts like the left mouse button. Wider roller and larger, easier to click buttons make the Pro the best choice for safer, high speed mousing. Key Features; A sturdier, aluminium base reduces risk of slipping and provides more