A very easy type of lawnmower to operate due to a comparative lack of features when compared to more specialised machines, the push 4-wheel rotary mower is an excellent choice for gardeners with relatively flat areas of ground to cover. The lack of drive system on these machines means that a little effort is needed to get them moving but this lack of drive-system leads to less maintenance and fewer running problems in the long-term; it is also a good form of free exercise to push a lawnmower around for an hour or two! Small to medium sized gardens are best suited to these machines, as the largest gardens will need a mower with a self-propelled drive-system.