The printed images on these mouse pads are an artistic combination of electronic circuits, mathematical equations and two and three dimensional graphics that summarizes a typical electronic problem solving process using both actual Spice and mathematical simulations that allows the engineer to visualize the extent of the design challenge. Engineered, designed and hand crafted in the USA. A unique design, brilliant colors and professional quality mousepad. Treat yourself to this item or give it as a gift. We carry hundreds of unique and exclusive designs.