Pilot G2 Mini G2S7-BLU-BC 31211, Blue Gel Ink 0.7mm Fine Point Rollerball Pen. UPC 072838312112. The mini version of the popular Pilot G-2 rollerball pen. Enjoy the premium G2 writing experience with super smooth G2 gel ink in a compact pen. Fits perfectly in purses, date books, briefcases, pockets... virtually anywhere! Contoured rubber grip appeals to adults and kids. Pen has retractable tip and pocket clip. Approximately 4-5/8" in length. Not refillable.