The 1/4" Edge Stitching Foot is designed for precise topstitching and edge stitching, helping you maintain a consistent 6 mm distance. This presser foot is specifically used for sewing quilt stitches. It fits various Group 7 models, including Designer SE, Designer I USB, Designer I ESS, Designer I, Quilt Designer II, Designer II, Quilt Designer, Designer Diamond, Designer Jade 35, Designer Ruby Royale, Designer Topaz 20, Designer Topaz 30, Designer Topaz 50, Designer SE Limited Edition, Opal 690Q, Opal 670, Sapphire 875Q, Sapphire 870, Sapphire 855, Sapphire 850, Sapphire 835, Sapphire 830, Sapphire 930, Sapphire 960Q, and Tribute 145C. The part number is 4129141-46. This foot ensures accurate edge stitching for quilting projects, providing a professional finish every time.