UB-157 Liquid Ink Rollerball Pens. The World's favourite rollerball pen for over 20 years. This handy wallet contains 8 Purple inked pens. 0.7mm Nib - Purple Ink. Wallet of 8. The 0.7mm nib creates a fine, 0.5mm line that lends itself perfectly to note taking and general writing tasks.
eBay