Our Rainbow Stripe Happy Birthday Card is made from high-quality heavy-weight cardstock. Cute and fun for birthday recipients of all kinds! Details: - BLANK INSIDE - Packaged individually in a crystal-clear no-flap plastic sleeve with a coordinating kraft brown envelope Card Features: - A2 (4 1/4 " x 5 1/2 ") Folded Greeting Card - 120# Cover Uncoated Smooth White Cardstock