Business cards are cards used for exchanging contact information, and self-introduction. Word cards are suitable for offices, homes, parties, etc.SpecificationColor: BlackMaterial: PaperSize: 90 x 54 x 0.3mm / 3.54" x 2.13" x 0.3mm(L*W*T)Packing List: 100 x Message CardsAdvantage1. The note card is exquisite and compact, easy to carry when going out, and does not take up space. Index cards feature curved corners to prevent scratching your fingers.2. Double-sided blank flash cards can be used for life notes, message notes, word marks, thank you cards, gift cards, list cards, location address cards, clothing tags, bookmark tags, listing cards, name cards, craft labels, gift tags, etc. A mini index card is suitable for Christmas, Halloween, Thanksgiving, birthdays, weddings, and exhibitions.3.