ResQmax Swiftwater Rescue KitThe Sling Projectile inflates on contact with the water to become a flotation collar or easy to hold floating ring for the subject. The 91 m (300 ft) 8 mm Polyspectra line floats and has a tensile strength of 9. 8 kN (2,200 lbf). The average launch distance with the sling projectile is 61 m (200 ft). ResQmax Swiftwater Rescue Kit Includes ResQmax Launcher with Folding Stock Streamline Sling Projectile with two spare molded sling burst capsules 91 m