The G9 Laser Mouse is very well made. This can be seen already on the USB cable, is sheathed with rubber that not, but with sturdy, woven nylon. The cable is also sufficiently long, so there are no problems with, under the table, Tower. In addition, there is the special scroll the Revolution mice, however, that you must not change by software, but with a button on the bottom of the mouse. That's sometimes a bit cumbersome, but frankly you rarely change the scroll mode. The mouse itself has an internal memory where you can store up to three profiles that you have set on their computer by means of software in order to not set this profile on other computers running the Logitech software installed, once again need , Included with the mouse are also weights and two handles. One of these handles has a very rough, grainy surface. This grip is excellent, because it prevents your hands when you start to sweat a little, constantly stick to the mouse. A really great gain in comfort. There is also a three-tier regime for the DPI resolution on the mouse. This is very handy. You can then switch for example in video games within seconds in a higher resolutions, you should suddenly need more clear position (At a higher dpi resolution the mouse pointer moves slowly and in more detail on the screen). The sliding feet mouse are thing you notice from Teflon immediately. I highly recommend this to anyone mouse. It is an excellent workmanship. The Logitech software allows for the most options and the precision is excellent.