Black/red replacement ink roller for the Casio HR-100TM and Casio HR-150TM calculator. Also compatible with many other popular Casio calculator models including the following: 1215 S, 2215, FR 110, FR 110 HT, FR 110 S, FR 1110, FR 120 C, FR 125, FR 125 S, FR 127, FR 2215 C, FR 2215 S, FR 2600, FR 2650, FR 2650 A, FR 2650 Plus, FR 320, FR 50, FR 520, HR 100 LC, HR 100 T, HR 100 TE, HR 100 TE Plus, HR 100 TM, HR 100 TM Plus, HR 110 S, HR 120 T, HR 150 LC, HR 150 LC Plus, HR 150 LCS, HR 150 LS Plus, HR 150 TE, HR 150 TE Plus, HR 150 TM, HR 150 TM Plus, HR 160 L, HR 170 L, HR 170 LB, HR 170 RC, HR 18, HR 200 RC, HR 21