The comfort 51.0 sp b self propelled mower from al ko has a 20 inch 51cm cutting width, single speed power drive and is powered by a briggs and stratton exi engine'. '.strtoupper('f')eaturing an extra tall maxairflow steel cutter deck to improve grass collection and help to prevent the discharge channel from becoming blocked. the 4 in 1 function allows the user to choose between cut and collect, rear discharge, side discharge and mulching'. '.strtoupper('c')ut and collect grass clippings in the easyclick 60 litre collector with fill level indicator so you know when it needs emptying'. '.strtoupper('r')ear discharge allows the clippings to be ejected through the rear of the machine where they can be left to wilt back naturally'. '.strtoupper('t')he side discharge option ejects the cuttings through the side of the mower and leaves them in neat rows whilst you mow'. '.strtoupper('m')ulching is a particularly beneficial option, especially in hotter, drier conditions'. '.strtoupper('m')ulching cuts the clippings into tiny pieces and blows them back onto the lawn where they become barely visible'. '.strtoupper('t')hey then provide your lawn with additional nutrients and moisture which promote healthier regrowth. 7 cutting height positions ranging through 30 80mm that can be easily adjusted using the spring assisted central lever'. '.strtoupper('s')tart with the highest setting and then work your way down for the best cut and finish for your lawn. features60 litre easy click rigid grass collector designed for optimum airflow which improves the filling performance'. '.strtoupper('t')he collector can be re attached easier with a guide rail'. '.strtoupper('f')ill level indicator to alert the user when the collector is full.maxairflow steel deck the deeper cutting deck with larger discharge channel increases the airflow so the grass cuttings are thrown higher to the back of the grass box'. '.strtoupper('t')he box can then be filled to the top and the discharge channel doesn’t get blocked.4inone function mow, collect, side discharge and mulchwide xxl rear wheels 280mm with double ball bearings ensure easy manoeuvrabilityintegrated front carry handle so the mower can be easily moved and transportedspecificationsmodel comfort 51.0 spbtype 4 wheellawn size up to 1,800m2blade type rotarycutting width 51cm 20 inchengine briggs and stratton 625 exi displacement 150ccpower 2.3kwstarter recoildrive yes, single speed 3.5 km hcutting deck maxairflow steelfuel petrolengine oil 4 stroke 0.6l bottle includedcutting height adjustment central, spring assisted levercutting heights 7 positions from 30 80mmcollector size 60lcollector type easyclick rigid with guide rail and fill indicatormulching yesside discharge yeswheel size 200 280mm, ball bearingsweight approx 34.7 kgwarranty manufacturer's 5 year for domestic use only terms conditions apply including annual service