Planning a superhero birthday party and need awesome invitations? These comic-themed cards are perfect for making your child's party feel epic from the very first invite! Each set comes with 20 high-quality 4x6 inch cards and matching envelopes - plenty for the whole class, sports team, or family friends. The double-sided design gives you plenty of space to fill in all the important details: your child's name, age, party time, location, and RSVP information. The cards are printed on durable cardstock that won't wrinkle easily, with bright, clear colors that really make the superhero graphics pop. No more hunting for the right size envelopes or dealing with flimsy paper that tears easily. The design works great for both boys and girls who love superheroes, and the fill-in format means you don't need to be crafty to make them look professional. Perfect for birthday parties, but also great for comic-themed events, superhero training camps, or any action-packed celebration. The quality is noticeably better than typical party store invitations - these feel substantial and special when guests receive them. Easy to write on with most pens without bleeding through the paper. The envelopes are sturdy enough to mail without tearing, or perfect for handing out at school. Seriously, if you want invitations that get kids excited about the party before they even arrive, these superhero cards will definitely deliver the wow factor your celebration deserves.