These X-ACTO X291 No 11M Broad Tip Knife Blades look a lot like those you pictured.
https://widgetsupply.com/product/bdm46.html
If they are what you are looking for perhaps you can find a supplier that ships to your location without charging an arm and a leg.
__________________
~Doug~
AC010505 EAMUS CATULI! Audere est Facere THFC 19**-20** R.I.P. it up, Tear it up, Have a Ball
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