Celebrate birthdays with our almost-good-enough-to-eat Blue Layered Birthday Cake Invitations! Perfect for your child's 1st birthday! These cheerful & fun Birthday Invitations can be personalized with all of your party's information and make a perfect custom touch to this special occasion. Our Blue Layered Birthday Cake Invitations are available in 2 sizes: 4" x 6" and 5" x 7". Please order in increments of 10 invites.