OptiShot Golf Simulator Bundle - Includes Callaway Net, 18 HX Practice Balls Includes OptiShot Simulator, Callaway 6' Tri-Ball Net & 18 HX Practice Balls Tracks Club head speed, Face angle & Swing path Enjoy a full library of world-renowned golf courses Easy three step setup, Software upgrades and new courses Comes with 60-Day No Questions Asked Satisfaction Guarantee!