Retractable ballpoint pen offers the convenience of four ink colors in one refillable pen. Ideal for recording data in different colors. Pen writes in four colors without changing pens. At the click of a color-coded button, you select the color ink you want: blue, black, red or green. Refillable pen also features a lanyard hole so you can wear it around your neck and be ready to write.Retractable ballpoint pen offers the convenience of four ink colors in one refillable pen. Ideal for recording data in different colors. Pen writes in four colors without changing pens. At the click of a color-coded button, you select the color ink you want: blue, black, red or green. Refillable pen also features a lanyard hole so you can wear it around your neck and be ready to write.