Designed specifically for the innovatively shaped rectangular Moleskine Roller Pens that fit comfortably on a Moleskine notebook, the Brilliant Blue Roller Gel Refill is presented in a black barrel casing - typical of the Moleskine brand - and engraved with the Moleskine logo. The base is fitted with a black cap so that the colour of ink is easily identifiable. Filled with brilliant blue Roller Gel ink developed specifically for Moleskine paper, it is clean, bright and quick drying.