The CS-310 top handled chainsaw is ideal for cutting through larger tree limbs and branches up to 10 In. in diameter. The top handle design allows users more flexibility when making cuts at difficult angles. Its powerful 32.6 cc engine provides ample power to the 14 In. bar and chain. Other features include: G-Force Engine Air Precleaner to ensure long engine life and extended maintenance intervals, side access chain tensioner, and lanyard ring for professional applications (strap not included). The CS-310 is backed by a five year consumer warranty, and includes operator's manual and engine oil. All ECHO engines are certified with the highest EPA engine durability rating.