Moleskine's blue ballpoint refill is designed specifically for any of Moleskine's innovative rectangular-shaped roller pens and click roller pens. Featuring a 1.0mm Large Tip, it has been specifically designed to write perfectly on Moleskine's ivory paper and the coloured paper of Moleskine's Messages Collection. The blue ballpoint refill is presented in a black barrel casing with a blue tip fitted on the base, with a clear plastic cover over the tip.