Sakura Ballsign 80 Gel Pen

A highly reliable analog input device engineered with proprietary aqueous gel ink for zero-friction, saturated data transfer.

$1.55

The Sakura Ballsign 80 (better known as Gelly Roll outside Japan) operates as a resilient analog input module, utilizing a proprietary aqueous gel ink formula to guarantee smooth, continuous fluid transfer during rapid logic mapping. Engineered with an uncommon 0.6mm tip, it delivers an optimal balance of structural precision and heavy color saturation, establishing a consistent, opaque data track on standard cellulosic surfaces. The lightweight plastic chassis integrates a securely fitting, non-rolling cap to prevent desktop displacement and ensure the instrument remains in constant readiness for immediate deployment.

  • Origin: Japan

  • Material / Paper: Plastic chassis, Aqueous Gel Ink

  • Dimensions / Size: 0.6mm tip

  • Key Feature: Proprietary aqueous gel formula, secure non-rolling cap