Retractable Medium Point Gel Ink Pens, Comfort Grip, Smart Color Art, And Homes. Smart Color Art 45 Pack Black Gel Pens, Retractable Medium Point Gel Ink Pens Smooth Writing for School Office Home, Comfort Grip (22 Black Pens + 23 Refills) PROFESSIONAL QUALITY: 22 black gel ink pens with 23 black gel ink refills, total 45 pack! Non-toxic, acid free, lead free, and all the materials are eco-friendly. Conform to ASTM-D4236. Safe using! It's made of high end refill. Superior ink and hard Tip (tip size 0.7mm) enable black gel ink pen to write smoothly without smearing and durable for long time! MORE INK: The ink pipe diameter of each refill is 3.6mm, which means ink capacity of each pen is twice larger compared to others. Besides, we use transparent oil to avoid leakage of ink inside and it is purer than colored one. EXCELLENT DESIGN: Pocket clip is convenient and easy to carry. Comfortable grip is good for long time writing. The tip of each pen is sealed with wax to avoid drying. DIFFERENT USAGES: Suitable for all kinds of places, such as offices, schools, families. Perfect choice for students writing and homework, exams, office staff writing records. And pens are ideal for writing in Writing Pad, White Paper, Notebooks, Ruled Paper, Copy Paper, Pocket Folder and so on. Get it and Enjoy it!