What a great Flyer.... Spin, Spin and Spin without stopping. No special gear driven bobbins needed. Just load your bobbin, turn on the flyer and spin till you're ready to stop. No need to stop and mess with hooks of guides. just Spin and be creative that all that's required;)
The orifice is .6 inches in diameter and is equiped with a large exit hole for easy threading.
We supply 2AAA batteries with the flyer. However they will be used due to bench testing.