S = 12 Pens, M = 18 Pens. Ultra-Soft, Non-Slip Grip: The unique grip design offers an exceptionally soft and comfortable tactile feel, making every pen effortless and comfortable to hold. 1.0mm Medium Point: A classic black ballpoint pen. The ink features rich, vivid pigmentation, making it an excellent tool for everyday writing. The long-lasting ink is refillable, ensuring smooth and reliable performance the ballpoint tip glides smoothly across the page with minimal risk of ink skipping. Quick-Drying Ink: The ballpoint ink dries extremely fast, allowing for fluid, smudge-free writing with bright, vibrant color-it dries the instant you write. Convenient to Use: Each pen features a built-in clip that easily attaches to notebooks, binders, or shirt pockets, making it ideal for signing documents and daily writing tasks. An ideal writing instrument for the office, business signatures, and schoolwork-suitable for users of all ages. Weight: 0.286 lbs.