John James Heavy Embroidery Needles Size Assorted 14. Heavy Embroidery needles are not actually heavy to use. However, they are the largest needle of the Embroidery sewing needle family. Typically they are used when working with twisted yarn in the art of crewel embroidery, for example yarn embroidery on a chunky sweater. This pack contains 2 heavy embroidery needles, both a size 14, one pointed and one with a round blunt point. Usage will depend on the openness of the fabric. 2 needles per package.