... ,pave concrete surface 5.CE Simple Operation & Low Maintenance DesignSCREEDEASY, powered by petrol engine, provides uniform vibration over the entire blade length ... . 5m, 16ft/4. 9m* Easily changed bladesTechnical Specification: ModelGPS-1 GPS-2 EngineAir-cooled, 2-cycle Air-cooled, 2-cycle Engine ...