Mitsubishi Pencil uni Signo Gel Ink Ballpoint Pen Refills / Replacement Ink Cartridges - Set 15. Red 0.28mm x1 68. Baby Pink 0.28mm x1 5. Lime Green 0.38mm x1 48. Sky Blue 0.28mm x2 Colors and thicknesses vary, but all are new and unused. The 5 Lime Green pen has a Donald Duck-themed body! (See photo 10) I bought these at a bookstore, but I won't be able to use them all, so I'd like to pass them on to someone who uses colored pens. Immediate purchase OK, no individual sales. Thank you.