This Trumark FSX-2000 Slingshot features fiber-optic sights (with instructions on the back of the box that shows you how to use FSX-2000 correctly and effectively!) that drastically improve your accuracy. Rotating prongs indicate if your slingshot is level and if you are pulling the band back straight. This slingshot also features a removable stabilizer which helps steady your aim and reduces recoil when the band is released. It is designed for serious slingshot shooters.