Echo CS-3510 Rear Handle ChainsawECHOs CS 3510 puts awesome power in your hands. Its ideal for storm clean up, light firewood cutting, light limb trimming and felling trees up to 28 inches in diameter. Its lighter and has more power for its size bringing greater productivity and less fatigue for the user. Features: 4. 4cc commercial grade gas engine Lower weight means less fatigue and greater productivity i 30 starter reduces starting effort by 30% 3 point spring vibration reduction