Meritline offers the CardSharp Folding Credit Card-Shaped Multipurpose Knife
in Black for $4.99
with free shipping
. That's $3 under our mention from four days ago as the lowest total price we could find by $8. (We listed a 2-pack for just $2 more three weeks ago.) It features a stainless steel surgical blade, polypropylene body, built-in protective sheath, and more.
Expect this item to take two to three weeks to arrive.