Are these pens allowed in the IB Externals?

My Teacher told me these pens aren't allowed in the IB externals, but I don't really believe her. Writing with these pens are the best to me and I haven't really found anything in the IB policy that says these types of pens are allowed.

https://preview.redd.it/eve65z0k5vke1.png?width=1600&format=png&auto=webp&s=167cf62685c27dd3f60e89cfba1a52311ec80607

https://preview.redd.it/sl1lzl6l5vke1.png?width=1000&format=png&auto=webp&s=163c382c41c833e5b02385b8082aff48b7ea510a