Open Toe Free Motion Spring Foot For Husqvarna Viking Sewing Machines. Part # : 4130376-46 (413037646) Alternate part numbers : 4166134-45, 4126134-45 The Open Toe Free Motion Spring Foot gives clear visibility when doing free motion quilting or embroidery. Because of the open front, you can easily do stippling or follow a design in the fabric. The spring action keeps the fabric from lifting with the needle as the stitch is being formed which helps eliminate thread breakage with specialty or heavier threads. Be sure to use the appropriate needle for the thread you are using. Fits below Husqvarna Viking models. Group 7 models : 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, Designer SE Limited Edition, Designer I, II, Opal 690Q, Opal 670, Quilt Designer, Quilt, Designer II, Sapphire 875Q, Sapphire 870, Sapphire 855, Sapphire 850, Sapphire 835, Sapphire 830, Sapphire 930, Sapphire 960Q Group 6 models : Platinum 955 E, 950 E, Platinum Plus, Platinum 770, 775, Platinum 750 Quilt, 755 Quilt, Platinum 730, 735, Platinum 715, Rose 600, 605, Iris, Scandinavia 300, 200, Interlude 445, 435, Lily 555, 550, 545, 540, 535, 530, 500, Freesia 445, 435, 425, 415, Lisa, Angelica, Viva, Victoria, 500, Facette 500/400, Emerald, 203, 183 Group 5 models : Prelude 340, 360, 350, 370 Prelude, Scandinavia 100, Daisy 335, 330, 325, 320, 315, 310, Oscar, Sophia, Emma, Lena, Romeo, Juliet, Anna, Sarah, 250, 230, 225/215, 210, 205, Jeans, Hugin Group A models : Huskystar Type A 219-224 Group B models : Huskystar 207, Huskystar 215 Type B snap-on feet, C10, C20, E10, E20, Husky 145, 140 Group E models : 19, 20, 21, 33, 19E, 20E, 21E, 49E