Easy set-up with automatic laser activation, eliminates Snell?s law on light refraction in water-just aim and shoot, quick target acquisition, disposable battery for up to 100 shots, standard removable double barb 1-in. long fold over prong for quick fish release, hollow point tip technology for deep penetration of skin and bone, package includes: (1) 5/16-in. Spot-On Laser Bowfish Assassin Point, (1) Laser Activation Bar, (1) Adjustable Magnet Slide, (1) Reversible Removable Double Barb 1-in. Long Prong, (1) Disposable Battery Pack, (1) Large Hollow Point Tip, and Instructions. Repl. barb available.