Used for processing the ends of wires, nylon coated wire, thread, etc. A 1.5mm crushing ball can be used for small (inner diameter approx. 2mm), and a 2mm crushing ball can be used for medium (inner diameter approx. 3mm). *As this is an accessory, the color may be changed to reflect changes in fashion. Also, during the processing process, color shading may occur without prior notice. Please note. (Some parts may differ in color from other parts.)