An A9 envelope measures 5-3/4 × 8-3/4 inches (146 × 222 millimeters) in size and perfectly fits A9 cards or half-folded sheets of paper. A9 envelopes are mostly used for sending announcements and invitations.

An A3 card measures 420 × 297 millimeters (16.54 × 11.69 inches). However, if you are going to print on A3 cards, then you might end up folding them into halves or quarters, giving it a final measurement of 210 × 297 millimeters (8.27 × 11.69 inches) or 210 × 148.5 millimeters (8.27 × 5.85 inches).

The size of a card envelope will depend on the size of the card itself. For instance, if you printed your invitation on A6 cards (105 × 148.5 millimeters or 4.1 × 5.8 inches), then you should use an A6 envelope, which will measure around 121 × 165 millimeters (4.75 × 6.5 inches).

The standard sticky note will measure 3 × 3 inches. However, you can find sticky notes as small as 2 × 2 inches, rectangular sticky notes that measure 3 × 5 inches, or oversized sticky notes that measure 15 inches on both sides.

The size of a typical flash card will measure 3 × 5 inches. However, you can print flash cards on any size of cardstock you have on hand.

There is no single size when it comes to flipbooks. However, the size that you can purchase is that of the standard index card, which is 3 × 5 inches. In fact, the smaller the flipbook, the easier it will be to rapidly flip through the pages to produce simplistic animations.

The size of an A6 card is 105 × 148.5 millimeters or roughly 4.1 × 5.8 inches. It is precisely equal to a quarter of the size of a sheet of A4 paper (210 × 297 millimeters or 8.1 × 11.7 inches).

There are two types of A2 card sizes to choose from—A2 Flat (4.25 × 5.5 inches) and A2 Folded (8.5 × 4.25 inches). These card sizes differ from traditional the A2 sheet size, which is 16.5 × 23.4 inches.

The display rack usually comes with 4 × 9-inch that accommodate 3.5 × 8.5-inch cards. The exact measurements of the rack may differ from business to business, so make sure you speak with the owner or manager before printing your rack cards.

The traditional #2 pencil measures 7-1/2 inches long and ¼ of an inch in diameter. That said, there is still so much we can learn about pencil size and weights, especially when we introduce the different types of pencils and their grading systems.

A tent card usually follows the A5 sheet size of 5.8 × 8.3 inches. Other popular tent card sizes include 4 × 6 and 6 × 9 inches, though you can print tent cards on any cardstock size you want.

The typical school folder will measure 12 inches tall, 18 inches wide, and have two inner pockets that stand 4 inches tall. When folded in half, the folder will measure 9 × 12 inches, which is large enough to house letter-sized sheets of paper.