I use these for my worldwide collections.
They arrive individually shrink wrapped with cardboard stiffener (seen in bottom image) to keep binder from moving in slip case during shipment, and a desiccant packet.
Pros:
1. nice looking. well made slip case is vinyl over a stiffener.
2. Less than $30 for binder/slip case when purchase set of 5
3. U-ring for high capacity
4. choice of colors
Cons:
1. Pages do not turn as easy with U ring
Maybe
1. no assist lever for opening rings (usually improves durability of ring alighment), I have 20 and so far no issues with ring alignment.
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