"Characteristics:This product complies with relevant requirements of 1996 Amendment to the International Convention for the Safety of Life at Sea,1974 and the International Life-saving Appliance Code. It is accredited by EC certificate issued by Bureau Veritas. It is used for ships or peoples on off-shore platform to launch the line to the near or pass-by ships for the purpose of lifesaving under distress situation.This appliane includes four projectiles and four lines and the projectile is fired by a pistol. Main technical parameters: 1) Throwing distance (windless weather) ≥230m; 2) Line breaking strain: ≥2kN; 3)Total length of the line: 270m; 4) Ambient temperature for use and storage: -30℃~+65℃; 5) Validity: projectile:3 years;throwing pistol:9 years " Main technical parameters: 1) Throwing distance (windless weather) ≥230m; 2) Line breaking strain: ≥2kN; 3)Total length of the line: 270m; 4) Ambient temperature for use and storage: -30℃~+65℃; 5) Validity: 3 years. "