A cursory look at the Kensington mouse highlights its immense trackball and the level of precision this should provide in terms of movement. This mouse is a CAD user’s haven for it is built to offer precise use. It is also an ergonomic mouse which you can use with both hands thereby reducing the workload on your fingers. On the surface of the Kensington, four large buttons can be seen and it is important to note that these buttons are programmable according to your peculiarities. The precise movements and customizable options it provides CAD users makes it ne of the best mouse options in the market.