This is a pack of 55 fine quality neon body blue ink gel pens with water proof technology and ergonomic grip. Excellent look and design having 0.5 mm ball tip.Classmates Octane Blue Gel Pen comes in a variety of colors. 5 vibrant Neon body colors. Classmates Octane Blue Gel Pen have a comfortable grip and smooth points and fast writing. Japanese waterproof ink. Stylish sculpted design.