When purchasing the StraightCurve Steel edging a generally sufficient quantity of fixing pins/spikes is already supplied with each edging length, however we also have extras available for purchase if these are required for a particular project.This handy spike is used to secure the StraightCurve Galvanized Landscape Edging firmly into the ground. The barb at the top of the spike locks into the safety edge at the top of the StraightCurve Landscape Edging for maximum strength.