A giant darning needle sized for Jumbo (Weight 7) yarn — the chunky stuff used for arm knitting, roving blankets, and oversized macramé where a regular metal yarn needle is hopelessly small. At ~200 mm long with an oversized eye, it threads thick yarn, roving, and t-shirt cord with ease. Prints flat on the bed with no supports; PLA works great, though PETG holds up a bit better if you pull hard against knots. A quick sanding pass on the tip and inside the eye keeps threading snag-free.