4x6 stamp set with 15 pieces! Coordinates with Christmas Cottage diesto create fun, interactive keepsake cards as well as fun holiday cards and tags. Pop-up keepsake card fits flat to mail in a standard size envelope. Watch the video for instructions on how to assemble the pop-up keepsake card. Step 1) Die cut your pieces. Step 2) Stamp your images. Step 3) Assemble your card. We've extended the life of this set beyond Christmas and winter to include a welcome message for new neighbors too!