The TrimStitch Pro is a side cutter attachment designed to trim fabric while sewing a seam, allowing you to complete seams and seam finishes simultaneously. It provides a professional finish to garments by enabling precise trimming as you sew. Compatible with most low-shank machines, it fits various series including the M3 Series, Inspiration Series, C1 Series, C3 Series, and others. The attachment is suitable for models such as 4205, 4206, 4210, 4220, 4228, 2010 Superb, ET-1 Perfect Finish, H74, 9340, 9100 Professional, Curvy Series, 8763, 8770, 8780, Stylist II, Heritage, Athena, One Plus, Anniversary Machines, Confidence Series, Fashion Mate, Stylist, Patchwork, and Fashionista. This genuine accessory comes in a carded blister pack and is designed for ease of use, making sewing projects more efficient and professional-looking.