New Genuine Husqvarna Viking Transparent Foot (Loose) Part #4131138-45 (Alternate part # 4120016-45).  

Use the clear view foot to create omnimotion, scallop, or 4 way stitches. Create beautiful borders and edgings on projects. The clear center portion provides great visibility while sewing. 
 
Compatible models:
Group 8 Models: Designer Epic 980Q
Group 7 Models: Brilliance 75Q, Designer Brilliance 80, Designer SE, Designer I USB, Designer I ESS, Designer I, Designer II, Designer Diamond, Designer Ruby deLuxe, Designer Ruby Royale, Designer Topaz 20, Designer Topaz 30, Designer Topaz 50, Designer SE, Designer SE Limited Edition, Designer I, II, Opal 670, Opal 690Q, Quilt Designer, Quilt Designer II, 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 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, 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 

Refund Policy:

Products and original packaging must be returned undamaged and unused in order to receive full value of refund. Buyers are responsible for return shipping. The initial cost of shipping to the buyer will be deducted from the amount of the refund. Defective items and products that do not match the listing description upon arrival are excluded from this policy and must be reported within 3 days of receipt.