Pfaff Creative Sensation Specialty Bobbin Case, Group JAdd Texture & Fun With Specialty Threads In the Bobbin Create beautiful bobbin work, also called reversed decorative stitch embroidery with the Husqvarna Viking Pfaff Specialty Bobbin Case. Wind heavier threads onto the bobbin which are too thick to fit through the needle and sew on the reverse side of the fabric. The Husqvarna Viking Pfaff Specialty Bobbin Case lets you create beautiful textures and work with fun decorative threads. Includes