The Replacement Flyer for the SpinOlution Echo spinning wheel. The flyer is the assembly that holds the hooks and the bobbin during spinning. This product is the flyer assembly only, without a head or bobbin. It includes a hook orifice bar. The right replacement when an existing Echo flyer is damaged, or when upgrading an older Echo flyer to the current production model. What's Included Replacement flyer for the SpinOlution Echo (no head, no bobbin) Hook orifice bar Wheel-specific: engineered for the Echo and not interchangeable with the Monarch, Firefly, Hopper, Pollywog, or Bee family flyers Choose Your Capacity 4 oz: matches the Echo's 4 oz flyer setup. 8 oz: matches the Echo's 8 oz flyer setup. 16 oz: matches the Echo's 16 oz flyer setup. Replacement Flyer vs Flyer Head & Bobbin If you're adding a new flyer size to your Echo (going from 8 oz to 16 oz, for example), you want the Echo Flyer Head with Bobbin product instead. That product includes the wooden head piece that attaches the flyer to the base and a matching bobbin. This Replacement Flyer covers the flyer assembly only, for repairs or upgrading an old flyer to current production specs. About SpinOlution SpinOlution spinning wheels and accessories are designed and crafted in the USA. Browse the SpinOlution collection for the full lineup.