BICCristal Re'New, Premium Refillable Ballpoint Pen, in Black and Blue, Pack of 2 Including 2 Refills of Each Colour

I’m a writer and a pen collector (that’s a handy combination!) My main choice for large writing projects has always been the BIC Cristal pen… but you know - you use them and then throw them away. Kind of a waste. These are the same in every respect bar one: when you finish the ink, you just replace it and keep using it. They are the same size, same weight, same feel… same everything. AND - there’s a little hack that I’ll let you in on - you can take the ink out of another Cristal pen and put it in these aluminum bodies… so you can have colors OTHER THAN blue and black. Cool product BIC!