Here is finally a useful and clever solution, the block of detachable perforated plastic pockets.
The pockets are perfectly held in the block and can be easily detached one by one.

Made in France, each pocket is perfectly smooth and can hold up to 25 sheets on average. This essential for filing suits all binders thanks to its 11 universal perforations.

The key features of the Quick 'in pocket:
PERFORATION: The perforated pockets are detachable, thanks to the micro-perforated strip on the side. They can thus be easily stored in a binder.
PROTECTION: The block effectively protects the included plastic pockets. Its card cover is resistant and allows for mobile use.
EASY INSERTION: The Quick 'In plastic pockets in the block have a seam at the top of the perforation strip called "curved-in." The shape of this seam allows for easy top insertion of documents without damaging them.
LEGIBILITY: The Quick 'In pockets are transparent and perfectly smooth for better readability of documents.
FORMAT: The block of pockets offers a compact size. It is easy to carry, use, and store.

A block of 60 Quick 'in plastic pockets OXFORD 5/100th + a block of 40 perforated Quick 'in pockets OXFORD 9/100th OFFERED