<https://crafthive365.com/product/cards-mini-rectangle-aperture-assrtd-2-fold-10/#product>
<http://schema.org/description>
"Card blanks with a rectangle aperture. Size: 74mm x 103mm when folded, 250 gsm card blanks complete with 83mm x 112mm white mini envelopes."
<https://crafthive365.com/product/cards-mini-rectangle-aperture-assrtd-2-fold-10/>