Genuine Brother pre-wound white thread reusable bobbins for embroidery. These bobbins fit Brother models PC8200, PC8500D, PC 6500, ULT2001, ULT202D, ULT2003D, PE300S, and PE400D. Washable and colorfast, reusable bobbins. When the thread is gone, wind your own thread on the bobbin! Convenient and easy to use. Bobbin size is 9.2. Please check your manual for details.