The Spike Height of Fourstar is the height of the isosceles triangles with respect to the unequal side, which are attached to the square of the Fourstar as the spikes. And is denoted by hSpike. Spike Height of Fourstar is usually measured using the Meter for Length. Note that the value of Spike Height of Fourstar is always positive. Typically, the value of Spike Height of Fourstar is greater than 0.