The Pilot G-TEC-C4 Gel Pen 0.4mm Blue (BL-GC4-L) is a premium ultra-fine gel ink pen engineered for exceptional precision and smooth writing. Featuring a 0.4mm needlepoint tip with a fine 0.2mm writing width, it produces crisp, clean lines that are ideal for detailed note-taking, technical drawing, journaling, planners, and professional document work. Its bio-polymer gel ink provides consistent, smear-resistant performance, while the ergonomic grip and refillable design ensure lasting comfort and value. :contentReference[oaicite:0]{index=0}