Petzl Swivel Open P58 SO

I have a very small rig - so space is of the essence and this performs beautifully taking my whole dynamic load

I ordered this swivel in the hopes of maximizing fabric length for the rig in my home with standard ceilings and have been very pleased with it! Though it takes longer to swap out, that is a small price to pay for the added height afforded by slipping the hollowblocks/spanset straight into the swivel without losing the valuable inches taken up by a carabiner. Would recommend!

Nice neat and unobtrusive swivel, well balanced and sturdy.

For a fixed or semi-fixed installation this swivel is really useful. It's compact anyway but because you don't need to add a caribiner each side of it you save loads of space over a standard set up. Not only that but because you need an allen key to fit and remove it it's less likely to be tampered with, removed or lost.
On the down side though needing an allen key can be a real pain when you can't find one! And I certainly wouldn't recommend this swivel for an installation which is being altered frequently. Oh, and one more thing, it would be incredibly easy to drop and lose the tiny screw especially if rigging out doors. Now that would be annoying.