Whether you're brainstorming, giving a big presentation or charting a classroom demonstration, the Sharpie Flip Chart Marker is perfect for collaborative writing. The unique ink won't bleed through flip chart paper, and the low-odor, water-based ink makes these markers ideal for classroom and office use. The bullet tip minimizes marker squeak, so you won't distract your colleagues or students while you write. Each pack includes 4 markers: black, blue, green, and red. Bullet tip. Sold as 3 packs, 12 markers total. Bullet tip for less squeak. Non-toxic, low-odor formula. Unique water-based ink won't bleed through flip chart pages. Age: 4+ years/Grade PK+