The cobra rm513spbi is a premium quality rear roller lawn mower powered by a briggs and stratton electric start petrol engine'. '.strtoupper('d')esigned by a british company the rm513spbi is suitable for lawns of up to approx'. '.strtoupper('5')0 x 50m'. '.strtoupper('t')he full width steel rear roller will gives lawns that traditional striped effect that is so sort after'. '.strtoupper('b')riggs stratton instart engines are petrol driven but can be started at the touch of a button'. '.strtoupper('n')o manual pulling is required'. '.strtoupper('a') small lithium battery clips onto the top of the engine and can give 10 starts with just a 10 minute charge'. '.strtoupper('a') fully charged battery will give over 50 starts'. '.strtoupper('t')he rm513spbi has a 51cm cutting width and the premium deck has been designed so that it aides airflow'. '.strtoupper('a')nother premium feature is the 3 speed transmission'. '.strtoupper('t')his means you can adapt the travelling speed of the mower to match the cutting conditions'. '.strtoupper('s')o you can achieve a close cut the cutting height can be set right down to 17mm'. '.strtoupper('f')or longer grass the height can be set up to 75mm'. '.strtoupper('t')he fabric grass bag has a capacity of 70 litres.