These sturdy cards can be used as business cards, playing cards, necklaces holders, nametags, economic call cards, gift tags, flashcards, thank you notes and baked goods product packaging. Also you can put a hole punch in them and used to label drawers with string.Perfect blank paper cards can be used with Christmas crafting paper to make gift tags, can be used to DIY escort cards or label food at wedding, paper cardboard also great for random note, reminders, flash cards and laser engraving, etc.These colored cards can be used in Christmas parties, Halloween parties, birthdays, anniversary celebrations, memories, weddings, engagements, baby showers and exhibitions, etc.