Makita EM4251 Commercial Grade 24.5cc 4-Stroke Gas Powered String Trimmer Fuel efficient 4-stroke engine - up to 60-Percent fuel cost savings Lightweight (11-1/2 lbs.) for easy maneuverability Quick start - low compression engine for easy starting Improved exhaust emissions are EPA Phase II, CARB Tier III compliant while maintaining power and performance Non-CARB Compliant/Not For Sale In California