Post-it Flags  Pen, Ultra-Fine Point (0.5), Black Gel Pen, One Pen loaded with 50 Flags (694-BLK-.5) Write, Flag & Find it! Post-it Flags + Pens are your productivity partner. Simply mark an important section of a document, then flag the page so you can quickly find your important information. It's the only Writing Tool available with a built in Post-it Flag dispenser. Simply mark an important section of a document, then flag the page so you can quickly find your important information. It's the only Writing Tool available with a built in Post-it Flag dispenser. Flag dispenser is refillable.