The contour 500e is a powerful lightweight easy to use 3 in 1 electric grass trimmer that offers trimming edging and a shrubbing facility to cut grass in awkward areas like under garden benches easily the trimmer comes with a retractable plant guard that helps protect plants and shrubs whilst trimming the trimmer also has a twin automatic feed cutting system which allows you to cut tougher grass feeding your additional cutting line when you need it