Hueler/hog rings  also called “C” rings are collated fasteners used to attach wire, fabric and other materials-  and lock them in place .Heuler rings are the ideal fasteners to lock shade net onto the hail net structure or trellis systems. You might hear someone refer to hog ring pliers as a bag closing stapler or hog ringer, as these tools are commonly used to close and seal a bag or sack at the opening. Other applications include: automotive seat manufacturing, bedding and mattresses, wire cages, and plant and pot tagging.