I'm selling this because I'm too busy with work to practice. I'm also selling a set of OptiShot2, including the dedicated turf mat! It comes with sponge-type balls, two rubber tees, and the cable to connect the main unit to your computer. There is no instruction manual, but you can view the user guide online. You can also download the software. You can make it like an indoor golf course by projecting it onto a large screen with your computer. Just connect it to your computer (Windows, Mac). Compatible with Windows 7, 8.10, and Mac OS X 10.8 There are no noticeable stains or scratches on the main unit, but please understand that it is a used item. Features: * Authentic golf simulation at home! Optishot 2 latest version * Includes famous golf courses from around the world * Authentic golf simulation at home! Just install it on your PC and connect the main unit (sensor mat) with the included 3m USB cable! * Playable for 2 to 4 people! You can also play with your family like a game.