Typically exchanged between artists and crafters (not sold), these cards mesure 2.5"x3.5" and fit in the sports trading card sleeves. These three were done for a swap I'm hosting on Swap-bot. The only other rule I added was that no type of glue or adhesive was to be used on them. Mine were assembled with staples, brads, eyelets and paper clips. A bit of a challenge but I like how they turned out. I hope my partners will appreciate them.