Converts a swing into a spinning swaying swirling thing, that takes some skill to manage.
Super with circular swings like the Nest or the Donut, could be great with a Trapeze Bar or a Skeleton. Not quite pointless on a Monkey, it won't work at all with a Frammock.
And If you hang one on a Triple frame there will only be room for one other swing.
The Swurl (for Swing Frame) Includes a Superglide so that you can quickly take it down or put it back up again as you like.
Does not "work" when a Swung Bar is in use - but both are easy to swap, and small to store, so if it's crossing your mind to - be Brave.