Peak Dale aperture card blanks arrive as packs with envelopes so you can mount a finished stitch into a ready-made trifold card.
Cards are described as acid-free card stock (250–300gsm depending on pack) with three folding sides around the aperture.
Packs include A5 and A6 rectangle white sets, mixed-colour round and square apertures, mini oval mixed packs, and cream mini rectangle cards.