Tombow 0.7mm Black Ink Refill (BR-SF33), for Airpress BallPoint Pen (BC-AP) , 3 Pack/total 3 pcs (Japan Import) Refill for Airpress Ball Point Pen(BC-AP11, BC-AP41, BC-AP54, BC-AP12, BC-AP20, BC-AP21), Reporter Compact Pen(BC-FSRC/BC-TSRC/BC-WSRC) & Reporter 4 Compact Pen(BC-FSRCV) Ink color: Black Pen tip diameter: 0.7mm