Lifebuoy

　　Outer diameter: 710MM

　　Inner diameter:440MM

　　Height:105MM

　　Weight:2.5KG /4.3KG

　　Buoyancy:>=14.5kg/18.5kg

　　Material: polyethylene outer skin(HDPE) and polyurethane foam inner core (hard PU)

　　Solas reflective tape