This beautiful Mermaids Under the Sea Birthday Party 5x7 Invitation is perfect for your little one's upcoming birthday bash! The invitation features a fun and sea inspired color design with a pretty mermaid swimming under the sea. It's perfect for a themed birthday party! The invitations are professionally printed on 110# card stock and come with blank envelopes. The invitation can also be a DIY printable file that you can print at home or at your local print shop.