The Comet Linethrower 250 is designed for ease of operation in the most extreme weather conditions. It can be used in all situations where a line is required to be passed accurately and quickly, these include:- All line-throwing operations at sea between vessels, ship-to-shore, shore-to-ship and shore based rescue services.- Rescue of swimmers in distress.- Line carrying across obstacles and rough terrain.Product life- Body and line kit: 9 years- Rocket 3 years (Spare rockets are available to replace consumed or time expired rockets.)