A:AnswerThe can only recommend the use of Brother genuine parts and accessories. The Brother ST150HDH uses SA156 bobbins, which are class 15 type bobbins.
A:AnswerThe Brother ST150HDH features a metal interior frame providing durability and improved stability when sewing at higher speeds. This machine also includes a 7-point longer feed dog system for smoother fabric feeding, 6-piece heavy-weight needle pack and 9 included sewing feet. Prices may vary depending on the retailer selling the machine.