Hybrid notebook? Filofax refillable notebook in pocket size

Taking a look at this pocket sized gem from the Filofax notebook range. The Filofax notebooks are a sort of hybrid between regular bound notebooks and ring bound planners. These could definitely be used as a planner.
here are some links to others who used this system for their planners.
• On The Go A6 Planner s...
• My new Filofax Pocket ...
• Filofax Pocket Noteboo...
Here are some links to items mentioned in this video should you wish to purchase your own.
Filofax pocket notebook
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Filofax notebook hole punch
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Filofax notebook dot grid paper
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Pen loop
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These are affiliate links