High quality ink provides a professional look. Keep this refill on hand and you’ll always have smooth, clean writing at your fingertips. Refill Format: Standard Gel Refill For Series: Pilot G2 G2 Limited G2 Pro G6 Dr Grip LTD Dr. Grip Gel G-Knock BeGreen B2P Gel Refill Tip Type: Conical Refill Point Size Type: Ultra Fine.