Al ko premium petrol lawnmowers are top of the range machines with superior features and a high technical '. '.strtoupper('t')hese models are available with a briggs stratton or honda variable speed drive.the alko premium 521 vs h power drive lawn mower has a 51cm 20″ cutting width, variable speed control and honda gcvx170 engine'. '.strtoupper('a') deep maxairflow steel cutter deck improves grass collection and helps to reduce any blockages in the discharge channel.the premium 521 vsh four wheel lawnmower uses a 4 in 1 mowing function which gives the user the choice between collect, rear discharge, side discharge and mulch'. '.strtoupper('g')rass clippings are collected into an easyclick 70l box which has a fill level indicator to let you know when it needs emptying'. '.strtoupper('a')djusting cutting heights is simple with the spring assisted central lever'. '.strtoupper('t')he lever can be set through 7 positions from 30 – 80mm'. '.strtoupper('s')tart with the top setting then work down gradually to achieve the best cut and finest finish on the lawn.if you don’t want to just cut and collect the grass you can change between discharging it to the rear of the mower, discharging it to the side in a neat line or mulching it into fine pieces.the rear or side discharge functions are designed for mowing informal and long grass areas where any cuttings can be left to wilt back naturally'. '.strtoupper('m')ulching is an excellent way to feed the lawn as the tiny grass pieces are rich in nutrients and as they wilt will release these back into the soil'. '.strtoupper('m')ulching is recommended for drier conditions and when the grass is shorter'. '.strtoupper('t')he pieces are so small they virtually disappear into lawn whilst you’re mowing.features 70 litre easy click rigid grass collector designed for optimum airflow improving 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'. '.strtoupper('m')axairflow steel deck a deeper cutter deck with larger discharge channel increases the airflow so the grass clippings can be thrown higher, right to the back of the grass box'. '.strtoupper('t')he box can then be filled to the top more effectively and the discharge channel doesn’t get blocked'. '.strtoupper('v')ariable speed control adapt the travelling speed of the mower for the most comfortable working pace'. '.strtoupper('e')rgonomic handles with the controls at your fingertips'. '.strtoupper('i')ntegrated front handle so the mower is easy to lift over obstacles'. '.strtoupper('4')inone function mow, collect, side discharge and mulch wide xxl rear wheels 280mm with double ball bearings ensure easy manoeuvrability specifications