With the Yarn Works Trolley Needle Thread Controller, you can eliminate the turning and twisting of fibers while stitching ruffles, hemming, seaming, smocking and more. This easy-to-use multi-purpose thread controller and finger protector controls multiple threads for smooth professional results. It is usually worn on the middle finger and is designed to be adjusted to any finger size.

With the Yarn Works Trolley Needle Thread Controller, you can eliminate the turning and twisting of fibers while stitching ruffles, hemming, seaming, smocking and more. This easy-to-use multi-purpose thread controller and finger protector controls multiple threads for smooth professional results. It is usually worn on the middle finger and is designed to be adjusted to any finger size.