Bestie Birthday Card A colorful swirl of love for your ride-or-die—this “happy birthday bestie” card is perfect for celebrating your favorite human. Each card is A2-sized (4.25in x 5.5in), includes a kraft envelope, is wrapped in a cello sleeve, and comes in packs of 3. cute birthday card for best friend, funny sassy snarky stationery, gift for women, birthday gifts for her, kitsch gifts, low ticket impulse buy, bold cards