The 21691 53cm electric start petrol recycler mower from toro features a briggs stratton engine, 53cm 21 cutting width, automatic drive system, electric start and recycle on demand technology. equipped with the unique toto automatic drive system cleverly matches your step and pace. This allows you to mow effortlessly up to 4mph. with 4 mowing options recyler, side discharge, rear discharge and rear collection. specificationsengine briggs and stratton 163cc 675 seriesstarter electric and recoilcutting width 53cm 21 inchdrive self propelled automatic drive systemdeck material aluminiumheight of cut 4 point, 1 4 25 102 mmcollection bag 64 litresdeck wash port yesweight 42kgdimensions hxlxw 42 x 91 x 55cmprevious model number 20797manufacturer's 5 year domestic 45 days commercial warranty. Annual service requireda bottle of engine oil is included with this toro lawnmower.