Stretch mesh sleeve placed over thread cones to control slippage and pooling so thread feeds smoothly during longarm quilting or embroidery. Especially helpful with metallics and monofilament. The net conforms to a range of cone sizes and can be trimmed to fit, helping maintain consistent tension and reducing tangles during storage or stitching. Built for reliable results in sewing rooms, classrooms and studios; always test on a scrap for best outcomes.