Trumark Fiber-Optic Slingshot with Stabilizer. The Model FSX-2000 sports optic-sensors which capture light to make the red and green sights glow for sharp visibility. Rotating prongs increase band life. The new snap on, snap off stabilizer counteracts and reduces recoil. Handle holds 5/16, 3/8 & 1/2 ammo. Light weight aluminum frame, split-leather pouch. 225 Yard Range!