For doming a great range of sizes. Excellent quality at an affordable price. The dapping block has 18 depressions and features 24 punches to dome a great many sizes. Punches range from 3.5 to 25.4 mm and are made of case-hardened steel for years of performance. Depressions in the 2"x2"x2" block range from 3 to 35 mm. This set comes with beautiful hardwood stand to keep it all well organized.