Cap/Hat Insert for the Pfaff And Husqvarna Viking Machines This cap insert makes it very easy to embroider on caps and Hats This will work with the following Embroidery Frames/Hoops (needed) Husqvarna Viking Do All Quilters Hoop 150x150mm - 6"x6" (920115096) Pfaff/Viking Creative All Fabric Hoop II 150x150mm - 6"x6" (820889096) Compatible machines: Designer Diamond, Designer Diamond DeLuxe, Designer Ruby, Designer Ruby DeLuxe, Designer Topaz 20, Designer Topaz 30, H|class 600E PFAFF Creative 2.0/4.0, Creative Sensation, Creative Vision, Creative Performance