Cake & vodka is the answer. It doesn't matter what the question is. Happy birthday! Always the answer. especially when a birthday is involved. Each card is handmade with high-quality acid-free cardstock using laser-printing, archival adhesive, and embellishments. Cards are all blank inside and are shipped with a recycled envelope in an eco plant-based cellophane sleeve. Card size 4.25 in x 5.5 in a2 Envelope color recycled kraft brown Envelope size 4.375 in x 5.75 in a2 Material paper Inside blank.