Simply place any of our Crimp Beads or Crimp Tubes into the opening on the One Step Crimping Pliers, then squeeze! Crimps are closed perfectly in just one step! If you want fast clean crimps, or are crimping a lot of projects, this tool will save you time and effort. Plus the larger design is easier on the hands! Perfect for any size Crimps and made to last! Includes 20 Silver Plated Crimp Tubes.