Pattern: Sideways Shell Baby Afghan, from Project Linus
Yarn: I bought it from eBay over five years ago, and I think it is Lion Brand Jamie but that's just my educated guess.
Needles: Size I/5.50mm crochet hook
Yards: 1862 yards
Mods: I made the blanket wider by increasing the beginning chain, and bordered the whole blanket with a round of single crochet.