English: In-process weaving sample of red and pinks yarns on a rigid heddle loom. alt=A rigid heddle. Widthwise slots don't quite reach either long edge, and a row of small circular holes lies between the slots, along the lengthwise midline. Warp threads pass through both slots and round holes. It heddle is carved from a solid wood plank. The long sides have a protruding triangular area, making the heddle hexagonal; the top and bottoms points are surmounted by flat knobs. The triangular areas have simple, rough incised carving.