Legacy Woodturning, Cigar Pen Kit, Many Finishes, Single Kit Finish: Copper Type: Ballpoint Twist Pen Double Twist Mechanism Drill Sizes used: 10mm; Compatible Tube Sizes: 10mm; Skill Level: Easy to Moderate Blank Size: 3/4" x 5"; Refill Type: Parker Style Cigar Bushings will fit this pen kit; Bushings and blanks sold separately