While unboxing a beautiful handmade notebook, one Reddit user stumbled upon a curious extra—an entire sleeve of neatly folded little triangles that looked like tiny pyramids. The notebook itself was a work of art: alternating tissue paper pages, dried plants pressed into the cover, and an overall aesthetic that screamed “artisan.” But what were these mysterious paper pieces?

At first glance, they looked like some sort of origami decoration or a component for a DIY craft. The symmetrical folds and clean angles sparked confusion and curiosity in equal measure. Some speculated they might be bookmarks, others thought they could be packaging fillers or even incense holders.

But the internet did what it does best—and solved the mystery.

Answer: They’re photo corners.
These small paper triangles are designed to hold photos, cards, or other items securely on the pages of a scrapbook or notebook without damaging them. You simply slide the corners of a photo into these little pockets and stick them onto a page. No glue. No tape. Just clean, archival-friendly placement—perfect for preserving memories.

So while the handmade notebook was already charming, it turned out to be a hidden treasure trove for scrapbookers and journalers. The photo corners weren’t just decoration; they were a functional, thoughtful bonus for anyone looking to create a keepsake that lasts.