The Edma Baby Grafer 16/20 Hog Ring Pliers include a stop guide for a stronger hold on the hog ring. They have patented ergonomic handles with a stainless steel coiled spring that has an anti rust coating for increased usage over time. For user safety and easy storage the handles feature a closing ring. There are also two wire cutters, located on the head, for wire upto 3mm thick. Compatible with Omega 16, Omega 20, Delta 18 and Delta 22 staples.