Ruined a blank on your Zen or Zap Cap build? This replacement brass tube — sized for single-barrel pens — gets you back to turning without buying a whole new kit.

• Quantity: 1
• Compatible with: the Zen and Zap Cap pen kits
• Tube dimensions: .400" x 3.35"

Cut to the correct length and ready to glue in — keep one on hand for the next build.