Replacement cartridge for the Pilot FriXion Zone. The Pilot FriXion Zone is the high-quality, modern rollerball pen in the FriXion family. The ink can be erased from the paper without leaving any residue. Thanks to its push mechanism, the tip can be easily retracted and extended, and thanks to the refill with greater opacity and up to 40% longer writing performance, the elegant FriXion Zone impresses across the board. It is rounded off by its timeless design with a matt finish and is available in black, grey, pink and beige. An eraser is integrated at the end of the pen.