Mazbot 25 Piece Wood Dapping Doming Punch and Block Set Punch sizes: (Punches are approximately 3.75 long) 9.5mm, 10mm, 10.5mm, 11mm, 12mm, 12.5mm, 13mm, 13.5mm, 14mm, 14.5mm, 15mm, 15.5mm, 16mm, 16.5mm, 17mm, 18mm, 18.5mm, 19mm, 20mm, 21mm, 21.5mm, 22.5mm, 24mm, 25mm Doming Block: Size: 2.75 x 2.75 x 2.75 4 Hemispheres (ranging from 45 to 55mm) 5 U shape grooves, 2 V shape grooves, 2 Half Squares