This is a Montblanc Generation Blue GT Ballpoint Pen.
Its authenticity is 100% guaranteed.
It has a twist mechanism, works well.
It has signs of use and minor scratches.
It has minor cracks near the top (picture 3,4).
There is no problem to use.
* FREE SHIPPING WORLDWIDE (by registered airmail) .
* I list pens, please visit my eBay store.