These rigid polypropylene ground anchor pins are suitable for anchoring edgings into soil or hardcore. The pins are 190mm long with a 5mm diameter round shaft and a 20mm diameter round head. A rubber mallet is ideal for driving the pins into the ground but if not a hammer can be used with care. 3 fixing pegs are required per piece when laid in a straight line. 4 or 5 fixing pegs are required per piece when laid in an arc or circle.