Many sets are blank inside for personal messages, while some items are preprinted. Several listings explicitly note "Blank Inside" or "Preprinted."
Many sets use matte-finish cardstock around 220 g/m², while some bulk or kids’ packs list 250 gsm cardstock. At least one listing also specifies 120 gsm envelopes.
Common extras include erasers, small rubber toys, stickers, heart-seal stickers, pre-cut twine pieces, shaker or emblem stickers, and other small novelty items depending on the kit.
Some boxed sets state they are printed on FSC Mix-certified paper, use soy inks, are chlorine-free, and are described as recyclable. The listing explains that 'FSC Mix' refers to a mix of certified forest content, recycled materials, and/or controlled wood.
Reviewers frequently praise attractive, cute, or pretty designs and note a solid paper weight or a non-cheap feel. A smaller share of reviews mention packaging problems or discrepancies in card counts for some sets.
