Echo CS-4510-16 in.Description: A simply reliable cutting machine. Whether the work calls for seemingly endless storm cleanup or bucking loads of firewood, the CS 4510 delivers power and performance for the long haul. TOP FEATURES: 45. 0 cc professional grade, 2 stroke engine Spring assist starter reduces starting effort Heavy duty air filter with tool less access provides superior air filtration Features: Three Point Spring Vibration Reduction System: Provides operator