The edging we are recommending for this area of your project is
300mm Steel Edging Inset At Ground Level
Specification:
Constructed from 5mm thick 300mm high mild steel and held into position using 500mm metal spikes.
No colour finish.
Note that due to the nature of mild steel, these may arrive on site as bare metal which will rust in time. This is the intended finish of the product and is a self protective coating.
