spare rig wallet inserts

Hello all

I have a prologic rig wallet which has a ring binder (which opens) at the top for the clear plastic inserts.

Does anyone know where I can source spare inserts for such a wallet? Not bothered if they don't match whats in there... just want a bit more capacity (and there's loads of room!)

cheeers
Jim

Staples - punched pockets - cheap as chip - just cut down to the size you want