TroyBilt TB25CB 25cc 2-Cycle Curved Shaft Gas String Trimmer. Features a 25cc, 2cycle lightweight engine and comes witha dualline bump head with .095" line for precise cutting. SpringAssist technology allows for easier pull starts, while the multiposition adjustable handle reduces vibration and operator fatigue . It has a 16" cutting swath for efficient and effective cutting. The curved shaft provides a clearer view of the trimming area and evenly distributes weight. Includes 2cycle engine oil and a 2year limited warranty. For Replacement Spool Use TV# 177123. It is CARB compliant.