Fountain pen Ink cartridges x 100 (BLUE INK) John Lewis boxs of 50 x 2

I've tried various cartridges for a Mont Blanc ink pen I own (it was a gift, I could never justify buying one myself and their genuine cartridges are very expensive too). These are cartridges are a perfect fit and unlike other cheaper ones are full of ink. Flow is good to the nib, very happy with this purchase, will definately buy these again.