Chain Saw Chain SawEngine typesingle cylinder,two-stroke,air-coolingDisplacement45ccEngine Power1.7kw/12000rpmFuel mixture ratio25:1(Gasoline 25:two-cycle oil 1)Fuel Tank Capacity550mlEngine Oil Tank Capacity260mlGUide bar size18"/20"G.W./N.W.7.5/6.5kgQuantity/40'HQ3700pcs Chain Saw