Pilot 77363 G2 Refills 1.0mm Bold, Purple Gel Ink, Pack of 2. Refills are designed for use with Pilot G2, G2 Limited, G2 Pro, G6, B2P, B2P Gel, MR Gel Roller, Dr. Grip Ltd., Dr. Grip Gel, Q7, G-Knock Begreen and Precise Gel Begreen. Gel ink formula delivers smearproof, smooth writing.