The Smart Alternative to gasoline, battery and electric trimmers. Our SmartPower Propane Trimmer is set to change the way you maintain your yard with a combination of features other trimmers can't match. A propane-powered, 25 cc 4-cycle engine eliminates the hassles associated with gasoline trimmers - fueling is easy and mess-free, start-up is quick and simple, and maintenance is easier than ever before. Propane is much cleaner for the environment as well, greatly reducing exhaust emissions and completely eliminating evaporative emissions and soil and groundwater pollution. Easy Fueling and Starting - Slide in a 16.4-Ounce propane canister, attach fuel connection. knob and start. Eliminates mixing gasoline and oil, gasoline spills and winterization. No priming or choking, and no risk the engine will flood. Better for the Environment than Gasoline - Exceeds EPA emission standards for hydrocarbons and nitrogen oxides by 65-Percent and carbon monoxide by nearly 75-Percent. Sealed fuel system eliminates evaporative hydrocarbon emissions and soil and groundwater pollution caused by gasoline spills. Superior Performance - Eliminates the restrictions, tangles and damage created by a cord and the frustrations of dead batteries and delays caused by battery charging. On average, delivers 40-Percent more power than leading electric trimmers and six times more power than leading battery trimmers. More power delivers a 17-Inch wide cut - up to 40-Percent wider than electric and up to 70-Percent wider than battery. Advanced Cutting System - CleanCut line reduces turbulence for cleaner, quieter, more efficient cutting. CleanCut line diameter and materials offer superior line strength and durability. Specifications: 4-cycle propane engine: 25.4 cc, full crank; Attachment-ready shaft accommodates standard trimmer attachments; Length: 67.7-Inch; Cut width: 17-Inch; CleanCut line diameter: 0.095-Inch; Dry weight: 13.1-Pound.