Presser Foot Quick Change Screw Device Fit Industrial Sewing Machine Parts Instant Clamp Spring Easy Presser Foot Holder Presser Foot Change Screws Clamps Adjustable Accessory Pack of 1 or Quick Change Screw Device Presser Foot Change Screws Clamps Adjustable Accessory is used in the JUKI DDL-8100, DDL-8300, DDL-8500, DDL-8700, DDL-5550, and DDL-555 which is made of Steel and has good quality