三色圆珠笔，笔芯颜色：红蓝黑。
书写流畅。
多种书写尺寸：0.5/0.7/.10mm。
握感舒适。
3-color ball pen 0.5/0.7/1.0mm
Three colors(black,blue,red)convenience in one pen
Perfect for recording data in different colors
Particularly smooth writing performance.
Available in 0.7 mm,1.0 mm medium and 0.5 mm fine point
Cushion grip comes in assorted colors.
