PILOT Frixion Ball Switch Frixion Ink 0.38mm (Black-Red-Blue) + Oil-based Ink 0.5mm (Black) Mocha LB31FBS1MO Erasable 3-Color Ballpoint Pen +

[Erasable and Non-Erasable in One Pen] The Frixion Ball Switch is a writing instrument that combines the erasable "Frixion" ballpoint pen and the non-erasable oil-based ballpoint pen into one pen. It offers the convenience of erasable ink and the peace of mind of non-erasable ink, all without the need to switch pens. [Alcohol-Resistant Oil-Based Ink] The non-erasable oil-based ballpoint pen portion uses 100% pigment-based ink. It boasts excellent water resistance, light resistance, alcohol resistance, and abrasion resistance, making it difficult to erase in all everyday situations.

[Pen Tip Diameter - Product Size] Erasable Ink: 0.38mm, Oil-Based Ink: 0.5mm, Maximum Diameter φ13.8mm, Total Length 145mm [Refill Part Numbers] Erasable Ink: LFBTRF-30UF, Oil-Based Ink: BRF-15 [Precautions] The black, red, and blue slide lever refills use Frixion ink, which disappears when rubbed with the rubber on the top of the pen. Do not use on documents or addresses where the ink must not disappear. The black clip-slide lever refill uses oil-based ink that won't rub off.