The einhell gc pm 40 s p petrol lawn mower is a powerful lawn mower recommended for lawns up to 1 000 msup2 in size the air cooled single cylinder 4 stroke ohv engine from einhell delivers enormous power for coping with large areas and areas with heavy growth you can engage and disengage power to the rear wheelsyou decide whether and when you need power assist from the engine the drive wheels on this high wheeler are ball bearing mounted you have plenty of bite for cutting dense growth or