A stacked cluster of coiled concertina barbed wire, bundled into tight rolls and pyramided three-high. Each loop bristles with sharp barbs, and the galvanized strands show streaks of rust where the metal has weathered in the field.

This is a classic defensive obstacle, the kind laid across no-man's-land, along perimeters, and around strongpoints to slow an enemy advance.

An essential piece of battlefield clutter for a Vietnam, mid-century, or modern conflict diorama, a wargaming table needing area terrain, or a fortified position where wire entanglements block the approach.