Thin bobbins for Brother sewing machines, high-quality sewing tools with a diameter of 21mm and a thickness of 9mm. - Model: 08-313 - Diameter: 21.0mm - Thickness: 9.0mm - Type: Brother, Thin I mistakenly purchased these about two years ago and have been storing them. They have been opened once, but are unused. Will be shipped in an envelope with water protection. Bubble wrap packaging + 30 yen.