The Monteverde Regatta Sport features black trim and black carbon fiber bands between segments of matte black or the bright segments of red or yellow celebrates the sporty style of sailors. Innovation comes with the new magnetic closure for both capping and posting the fountain and rollerball pens. The weight and balance of this collection creates supreme writing performance. Fountain pen fills with Private Reserve standard ink cartridges or piston ink converter (included). The nib is flexible stainless steel. Ballpoint accepts P13, P15 and P44 refills and the capped rollerball accepts the Monteverde and Retro 1951 refills.