About this Product
? Funny Sibling Birthday Card – “From Your First-Born”
Because let’s be honest — the first-born nailed it, and the rest are just… practice runs. This hilarious, text-only card is the ultimate brag for eldest children everywhere, perfect for celebrating mom or dad’s birthday with the proper amount of sass and favoritism.
Card Specs (eldest approved):
A2 size (4.25" x 5.5")
Blank inside — space for your own sibling brag or roast
Printed on premium, recycled heavy 120# hand-cut cardstock (stronger than sibling rivalry)
Comes with a matching envelope
Wrapped in a compostable protective sleeve (eco-sibling approved)
Ships in a sturdy, biodegradable recycled envelope (Save the trees! Start the family drama)
Designed with unapologetic wit by Inconceivable Cards & Gifts
✨ Perfect for: moms, dads, sibling roasts, and first-borns who deserve the crown.
