ITEM NAME:Five Thread Industrial Sewing Machine Feed Dogs H500 & D581 for SIRUBA 757 Description: - Material: Steel - Size: Approx. 55 x 30 x 18mm/1.96 x 1.18 x 0.7 inch - Fits for SIRUBA 757 Five Thread Lockstitch Industrial Sewing Machine - DIY Useful Sewing Machine Parts Attachments - Product Model: H500 + D581 Package Included: 1 Set Feed Dog.Product Model: H500 + D581. - Fits for SIRUBA 757 Five Thread Lockstitch Industrial Sewing Machine. 1 Set Feed Dog.