Features: Engine:1E40F-5,Back-pack Fuel Use:2-Cycle oil/gasoline mixing ratio:1:25 Displacement:42.7cc Ignition: CDI Power:1.5Kw Start system: Recoil Shaft length: soft and hard Shaft diameter:28mm Handle: Loop handle Belt: Double belt Blade: Nylon cutter or metal blade Protector: Big or Little