Each box contains 600 First Strike Paintballs. Utilizing a combination of aerodynamic shape and fin stabilization technology, First Strike projectiles maintain their velocity longer. The result is 50% greater range and unrivaled accuracy. Finally, players have an alternative to accuracy by volume or backspin gimmicks that simply change trajectory. Become one of the first true paintball snipers with First Strike. First Strike paintballs are designed to be used with First Strike compatible markers only. First Strike paintballs can be muzzle-loaded individually in most markers, but may not be compatible with all paintball markers. Features: Fin Stabilized: Self-Rifling provides superior range and accuracy. Brittle Polystyrene Shell Allows breakage on targets at extended range, withstands extreme temperatures, moisture, and humidity. Biodegradable and environmentally friendly. .68 Caliber: Compliant with ASTM safety requirements. Ultra-Thick Fill: Superior marking and visibility.