All cavities are 7/8" deep, allowing you to customize the length CAVITY SIZES (mm): Round Cone: 18mm, 15mm, 12mm 4 Sided Cone: 12mm, 15mm, 18mm 3 Sided Cone: 18mm, 15mm, 12mm Push Mold Tutorial by Patricia Larsen at Patricia Larsen Art Jewelry The Duck Bill Mandrel is Patricia's choice for holding the wire
