The Brother SA230 Bias Tape Binding Set is a must have for attaching binding to garments, quilts and more. The Brother SA230 Bias Tape Binding Set allows you to attach precut partially folded bias tape binding the edge of fabrics. The Brother SA230 Bias Tape Binding Set includes Wide guide for use with 6mm wide cover stitch Small Guide for use with 3mm narrow cover stitch The Brother SA230 Bias Tape Binding Set is compatible wtih Brother models CV3440 and CV3550.