Echo CS-3510-16AA ChainsawDescription: The lightest chainsaw in its class, ideal for storm clean up and mid size tree felling, it powers through with reliability and productivity. Features: i 30 starter reduces starting effort by 30% Multiple stage air filtration system cleans air and reduces air filter maintenance 34. 4 cc professional grade, 2 stroke engine Specifications: Engine Displacement (cc): 34. 4 Engine Displacement (cu in): 2. 1 Starting System: i 30 Ignition