Unique and fun, these petal cards will really impress the guests! Made from 80 pound cover weight Basis card stock, these "flower cards" come in a variety of pretty colors with professional score lines. Our DIY blank invitation petal cards have four rounded “petals” that lock together to create a secure origami-like fold. Add some ribbon! Each card can be mailed on its own by closing it with a seal or sticker. Or if you prefer, purchase our matching envelopes.