The creative™ Bobbin Case allows you to add heavier threads, cords, ribbons, and more to your embroidered designs. The "work" is done upside down--you see the wrong side of your fabric while stitching. Here are a few tips to get you started: -You will need to wind the bobbin by hand--make sure you are winding it in the correct direction. -Test the bobbin tension and make adjustments before inserting the bobbin case into your machine. -You will manually bring up the bobbin through your fabric--so