Troy-Bilt TB415CS 26cc 4-Cycle Curve-Shaft Gas String Trimmer 26cc 4-Cycle Engine is cleaner, easier to use, produces less noise, uses less fuel, and does not require gas and oil mixing. Quick-Change Head Easy to refill and rewind! Replace line without removing any spool from the cutting head or taking a spool apart. Spring Assist Starting Technology Dramatically reduced starting effort, Starts with just a smooth and steady pull Adjustable D-Handle allows for right or left-handed use offering comfort and convenience Non-CARB Compliant/Not For Sale In California