The professional choice for precision modeling and shaping. Whether you are closing a seam or shaping you will find that this tool quickly becomes your favorite choice. The smaller the point # the smaller the tip. 0 point tips are great for getting into those really hard to reach places. Wider tips like 2 are great for seam work. Cleans easily with water or dry cloth after use . Even most adhesives can be easily cleaned from silicone tip.You should own a different set for each type of base metal clay you are working with in order to insure no cross contamination.