The BERNINA Patchwork Foot with Guide #57 (321487100) is a precision quilting foot designed to help you achieve perfectly accurate 1/4" seams every time. Featuring a built‑in metal guide, this foot keeps your fabric aligned as you sew, making it ideal for patchwork, piecing, quilt blocks and any project where seam accuracy is essential. Whether you're a beginner or an experienced quilter, this foot delivers the consistency and control needed for beautifully matched points and professional‑quality results. Key features: Built‑In Seam Guide: Ensures perfectly straight and accurate 1/4" seams. Ideal for Patchwork & Piecing: Helps maintain consistent seam allowances for precise quilt blocks. Perfect for Straight Stitching: Designed for clean, even feeding on cottons and quilting fabrics. Improves Accuracy: Reduces drifting and uneven seams, especially on long or narrow pieces. Genuine BERNINA Accessory: Engineered for a perfect fit and long‑lasting performance. Snap‑On Convenience: Easy to attach to compatible BERNINA machines. Further Informationhttps://www.bernina.com/BERNINA/media/Support/Accessories/Presser_Feet/%2357/EN/035628-50-57_-57.pdf