CS-352ES 34cc Compact rear handle saw CS-310ES 30.5cc Lightweight, well balanced saw CS-390ESX Powerful rear handle chainsaw 38.4cc CS-501SX Lightweight professional chainsaw 50.2cc CS-621SX Heavy-duty petrol chainsaw 59.8cc Echo CS7310SX Chainsaw 73.5cc CS-2511WES-C Lightweight, compact rear handle chainsaw with carving bar 25cc CS-420ES Felling and logging chainsaw 40.2cc CS-281WES Highly manoeuvrable, lightweight utility saw CS-4510ES Powerful rear handle chainsaw 45cc