This kit contains a fully machined, aluminum rollerball tip designed to convert the Decograph fountain pen into a rollerball pen. The rollerball tip has been machined to thread directly into the Decograph grip, replacing the nib unit. It requires minimal accessories: the tip, a spring, and a 110mm rollerball of your choice. The rollerball tips are provided in four finish options: Black, Matte Black, Silver, and Tumbled. You’ll also be prompted to select a refill. The kit comes standard with a Pilot G2 refill in black with a 0.5mm tip. Upgrades to the Schmidt SRC5888 in both black and blue and the Schmidt 6040 Fineliner in black and blue are available at an additional charge.