Want to brighten a light-colored acrylic or hide glue lines on your next Slimline build? These nickel-plated tubes swap in for the standard brass tubes and give the barrel a bright, reflective look.

• Quantity: 5 sets (5 upper, 5 lower tubes)
• Compatible with: Slimline (7mm) pen kits

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