The 8 3/4'' and 22cm Zig Zag Fabric Cutting Scissors are scissors with serrated blades that cut in a zigzag pattern, used to finish fabric edges and prevent fraying without the need for bias tape or overlock stitching. They are widely used in patchwork and creative sewing to provide a decorative finish to the visible edges of garments and appliqués. The 22cm size is one of the largest in the range, allowing for efficient zigzag cutting of large areas of fabric. They are a very useful accessory for those who work with fabrics that fray easily.