I currently don't have any Xtool products, but I'm looking for one to engrave on to these binders https://www.amazon.com/Vault-Premium-eXo-Tec-Zip-Binder/dp/B08G8VFJS6?source=ps-sl-shoppingads-lpcontext&ref_=fplfs&smid=ASKRNQQ9PE055&th=1

I have no idea what the material is as “exo-tec” isn't super helpful. Also based on the dimensions of the binder, I'm not sure if the F1 Ultra would work since it wouldn't fit under the cover (or does it work similarly to the F1 where as long as it closes ‘flat’ it still works?

Any help would be great.