Calculate the dimensions of your mail Personal

Take the stress out of shipping and wondering if your oversized envelope will pass through the Slot of Doom at the Post Office! Perfect for online and Etsy

This Canada Post Lettermail Slot Sizer is your trusty companion for determining whether your mail falls within the standard or oversized

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slot black This Canada Post Lettermail Slot Sizer is your trusty companion for determining whether your mail falls within the standard or oversized