A2 Card: An A2 greeting card is 4.25 inches by 5.5 inches when folded. It is commonly used for more intimate cards, such as invitations and thank-you notes. A2 cards can be top-folded or side-folded and it has just the right amount of room for your message. 

A7 Card: An A7 card is 5 inches by 7 inches when folded. It is commonly used for wedding and sympathy cards. A7 cards can be side-folded or top-folded and has plenty of room for your message to your recipient. 

Slimline Card: Slimline cards are sized at 4 inches by 9.25 inches when folded. It is an elegant card that is used for special occasions, such as anniversaries or bridal showers. It can be side-folded or top-folded and it has plenty of room for a note to your recipient. 

Mini Slimline: Mini slimline cards are sized at 3.25 inches by 6.25 inches when folded. They can be side-folded or top-folded. The mini slimline is perfect for quick notes to someone when you have a few things to say. They are great for cards with themes like Hello or Just Because.  

Fun Folds: A fun fold greeting card is a type of card that features a unique and interactive folding pattern, moving beyond the standard bifold design to create a more dynamic reveal. These cards can be found in a variety of styles. There are several popular styles of fun fold cards. 

Oopsie Cards: As these cards are handmade, there may be slight imperfections. These are often unnoticeable and do not affect the card's function. It's these particular cards that are called Oopsie Cards. They are of all sizes and types listed.