If you are looking for a solution to be able to spin and ply thicker yarns on your Fantasia or for a larger bobbin capacity, the Fantasia Jumbo Flyer Kit is the answer for you! This kit comes with a Jumbo Flyer & Jumbo Bobbin. The Jumbo Whorl that is included in this kit allows 4 and 6 :1 ratios. Also, included are 4 Jumbo sliding hooks, a tension spring set, and a small allen wrench. This kit offers the perfect upgrade to your Fantasia to be able to create all that funky, spunky art yarn you’ve been thinking about getting into to!