The temperature is rising with these Birthday Fever Invitations! Our postcard-style Invitations feature a decorative birthday cake topped with colorful birthday candles, stars, swirls and polka dots galore, and a big "YOU'RE INVItEd!" headline. Back of Invitations are blank, so write a message from the heart! Don't forget to seal with a matching sticker adorned with birthday balloons. Inside of each envelope, include a "SaVE THE DaTe" for guests' calendars. Birthday Fever Invitations Value Pack contains 20 cardstock Invitations, 20 blue envelopes, 20 seals, and 20 save the date stickers.