Pilot Birdie Switch Ballpoint Pen Refill 0.7mm Black BTRF-8F-B

Compatible with the Birdy (or Birdie) Switch pen HSBN-50S-S, this 0.7 mm oil-based refill delivers smooth, consistent writing with precise, fine lines. Its design ensures a steady ink flow that prevents smudging or skipping.

The Pilot Birdie Switch is a slim, highly portable, Japanese-made multi-pen that combines a 0.5 mm mechanical pencil and a 0.7 mm ballpoint pen in a stainless steel body. Designed for Everyday Carry (EDC), you can easily swap between the pencil and pen by moving or removing the cap.

Features

• Compatible with Birdie Switch pen
• 0.7 mm ballpoint for precise, smooth writing
• Oil-based ink for consistent flow
• Compact size: 34 mm full length, 4 mm maximum diameter
• Easy to replace and handle

Instructions 

To replace the Black Birdy Switch refill, unscrew the pen’s cap or mouthpiece, remove the empty refill, insert the new refill fully, and screw the cap back on. Press the upper knob to extend the tip and press again to retract. 

Details

• Contents: 1 refill
• Ink color: Black
• Ball diameter: 0.7 mm
• Full length: 34 mm
• Maximum diameter: 4 mm
• Made in Japan