Uniball ZENTO Water-Based Ink Refill UBR-Z-38, 0.38Mm Extra Fine Point, Blue, Co
Uniball ZENTO UB-ZH-38, uniball ZENTO UBN-ZF-38, uniball ZENTO UBN-ZSC-38, uniball ZENTO UBN-ZS-38. Engineered with a next-generation water-based ink, it features POA surfactants, a special lubricating agent that reduces friction by 40%, allowing the tip to glide across the page with ease.