Tombow oil-based ballpoint pen refill KNU038 black BR-KNU33 Tombow 4901991638646 (10 sets)

Ball diameter: 0.38mm Maximum width 6 x total length 112mm 3g Oil-based ballpoint pen refill for monograph light. ◆Ink color: Black ◆Specifications: 0.38mm ball ultra-fine characters, stainless steel tip ◆Ultra-low viscosity oil-based ink ◆Body: BC-MGLU