Sharpie Products - Sharpie - Flip Chart Markers, Bullet Tip, Four Colors, 4/Set - Sold As 1 Set - Water-based ink formula will not bleed through flip chart paper or presentation boards. - Non-squeak bullet tip. - Low-odor formula. - Bright, vivid color. - Water-based ink formula will not bleed through flip chart paper or presentation boards. Non-squeak bullet tip. Low-odor formula. Bright, vivid color.