Hover mower electric lawn mower series flymo easi glide cutting width 33 cm min cutting height 12 mm max cutting height 32 mm cutting height steps 4 positions power watt 1 400 watt grass box capacity 20 litres start system electric start features central cutting height adjustment safety feature engine stop blade brake housing material plastic cable length 12 m schallleistungspegel 89 metal blade height 69 cm width 405 cm length 135 cm a