Most student welcome postcards measure about 6 x 4 inches (6.0 x 4.0 inches), a common standard mailing size.

Smaller classroom sets commonly contain around 60 postcards. Bulk options are often sold as packs of 30 cards in six-pack bundles (30 × 6 = 180 cards).

They’re printed on heavy paper or durable cardstock designed to withstand mailing and handling.

Most are sized for mailing at about 6 x 4 inches and include a blank area for handwritten messages, making them easy to personalize and mail.

Many cards have a blank area for handwriting, allowing teachers to add personalized welcome notes or encouraging messages.