Pilot Refill V5/v7 Set 3 Pz Nero

Replacement ink cartridges for Pilot V5 and V7 Cartridge System refillable rollerball pens. Pack of 3 cartridges. To replace cartridge: Hold the pen tip-up and pull the old cartridge off without twisting. Push the new cartridge on firmly to break the seal. Do not twist. These cartridges are not suitable for use in fountain pens.