To use without fear for collectors and players.

This American company offers a range of products to collectors
to protect their collections while allowing admire them.

This box contains 100 sheets, transparent plastic, perforated A4 format
use with 2 ring binders American or European to 4 rings. To
be specific, these sheets have the same perforations a workbook sheet
standard A4 circular holes and oval holes) so if your workbook accepts
that kind of leaves then accept Ultra Pro slips.

These sheets contain 9 pockets size 2.5 x 3.5 inches US (or 2 1/2 x 3 1/2)
EU 6.5cm x 9cm (ladle with their uniltés wild ...)

In these pockets you can put up to 3 or 4 cards without deforming the sheet and
up to 6 cards, but there is at the limit of the slaughter.

Usefulness?
You collect dela NBA cards? or card WWL? Here is a simple way to keep
and convenient to admire them without damaging them.
You play collectible card games like Magic the Gathering or Pokemon, Yu-Gi Ho
(Sorry for the spelling) or other, here is a very convenient way to organize your cards to improve
your strategy.