It's filled with a proprietary black gel ink that was especially developed for Moleskine paper: it's clean, bright and quick-drying. The springy point tip flexes during use for effortless writing, so your thoughts dance across the page. It's also refillable, so it will last and last. Inside: a set of 24 stickers to personalize your pen, plus the legendary story of Moleskine. Black, Blue, Green, Red, Violet, and Brown refills are available (sold separately).