Refill with the Pilot Parallel Pen Assorted Cartridges Pack of 12 which are designed for Pilot\'s esteemed Parallel pen range. Express your creativity with a range of assorted colours for your Pilot pens.The inks are mixable so you can transfer the ink from the nib of one Parallel pen to another allowing for a plethora of combinations.. Pack of 12 refill cartridges for a Pilot Parallel Pens. Assorted colours. Liquid ink. Approximate dimensions for each (mm) H 63 W 16 D 53. Weight 26 grams