This BIC 4 Colours Smooth Gradient display includes 30 retractable ballpoint pens with a blue-green gradient barrel. Each pen combines four built-in ink colors: blue, black, red and green, with a medium 1.0 mm point and a 0.4 mm line width. It is a practical choice for note-taking, color coding and shared office use, and it works well as a retail display or bulk purchase for classrooms and workspaces. The item sold is a 30-piece BIC display.