Legacy Woodturning, European Pen Kit, Many Finishes, Multi-Packs Finish: 24kt Gold Type: Ballpoint Twist Pen Drill Sizes used: 7mmCompatible Tube Sizes: 7mm Skill Level: Average; Blank Size: 5/8" x 4 "; Refill Type: Cross Style European Bushings will fit this pen kit; Bushings and blanks sold separately