Bonzin Ballsign
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The Bonzin Ballsign is a double-sided high-momentum mod made by JEB spinner Bonzin. It was made popular thanks to Noel's many uses of it.
Construction
Parts needed
List from Ponkotu's blog [1]
- 1x Sakura Ballsign (1 body)
- 2x Pilot SuperGrip (2 grips)
- 1x Pilot Dr. Grip (grip)
- 2x Tombow Playcolor2 (small, clipless caps)
- 2x Uni-Ball Signo (tips)
- 1x Pentel Hybrid Gel Roller (grip)
- 1x Penzgear (2 rings)
- 1x Sailor IC Liquid Gel (grip)
Additional Items
- An insert
Text tutorial
Preparation
- Completely disassemble the Ballsign, removing the ink tube and rear plug. Keep the barrel.

- Add an optional insert.
- Separate the smooth and striped sections of both SuperGrip grips. Keep the striped sections.
- Cut the Dr. Grip grip in half.
- Cut the HGR grip in half.
- Cut two three-ring sections of Sailor grip.
Assembly
- Fit a striped SuperGrip section over the smaller, clipless Playcolor2 cap.

- Fit a three-ring Sailor grip section over the SuperGrip section.
- Fit one half of the HGR grip over the front of the cap.

- Place one PEN’Z GEAR ring on the end of the cap, followed by a Signo tip.

- Fit one half of the Dr. Grip grip over the HGR grip and tip assembly.

- Repeat with the other Playcolor2 cap.
- Fit the completed cap assemblies onto both ends of the empty Ballsign barrel.