To properly install an invisible zipper, you must have an Invisible Zipper Foot. As the zipper coils are guided through the tunnel system, the needle sews as close to the coils as possible. This easy-to-use foot ensures your zippers are finished professionally and rival that of any high quality garment. Guaranteed to fit Husqvarna Viking Sewing Machine 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, Quilt, Designer, Quilt Designer II, Opal 690Q, Opal 670, Sapphire 875Q, Sapphire 870, Sapphire 855, Sapphire 850, Sapphire 835, Sapphire 830, Sapphire 930, Sapphire 960Q, Tribute 145C 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: Emerald 116, 118, 122, Prelude 340, 360, 350, 370, 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, Tribute 145M Group 4 Models: Classica 105, 100, 95, 90 Group 3 Models: Optima 630, 620, 610, 190, 185, 180, 150, 120 Group 2 Models: Prisma 990 S, 990, 980, 960, 950 S, 950, 945, 940 Group 1 Models:Orchidea, 1250, #1, #1+, 1200, 1100, 1090, 1070, 1070 S, 1050 Group D Models: All 2000, 3000, 6000 series, 1010, 1030, 1040, 3010, 3310, 3610, 5610, 5710, 6570, 6690, 3240