[Black] I absolutely love these quick releases! Very solid build-quality, and absolutely zero wiggle, or rattling noises, once fully engaged and tightened down.
They come lightly lubricated, and individually wrapped in their own plastic resealable bags. A nice aesthetic touch if you ask me. Unfortunately, those bags do tear rather easily, which feels a tad wasteful, but I don't imagine that will be a really issue for anyone.
No 5/8 to 3/8, or any other size, adapters are included. This was a non-issue for me, but I thought it might be worth mentioning.

[Aluminum] If you care about your expensive microphones, then use these reliable quick mounts that actually work and stay seated.

Don’t get knock offs or cheap stuff, you’ll regret it.

These clicks in easily and sits snug, it’s easy to swap and the quality is fantastic.

[Aluminum] If you need something like this, the buck stops here. This stuff is MADE!

[Black] I provide sound for a variety of bands, and these quick-release couplers save a lot of time. They are very well built and provide a solid, tight fitting between the mic and stand. They add a couple of inches to the stand (or boom), but so far this hasn't presented any problems; in fact, the slightly longer booms come in handy from time to time when you need a little extra reach (like rigging vocals for a grand piano).
It would be nice if the separately available mounting heads (IO-H) were also available in a lower-priced multipack. Purchased individually they cost 75% of the entire assembly.

[Aluminum] Replaced a worn-out lighter-duty version of this arm and am extremely pleased with this newer version. No issue holding any position I place it in, including fully exentended with an sE Gemini II LDC mic.

[Aluminum] If you love your mics and need a great system for quick swaps, there are no alternatives. Just buy Triad-Orbit. You'll feel the quality.

[Aluminum] If you care about your expensive microphones, then use these reliable quick mounts that actually work and stay seated.

Don’t get knock offs or cheap stuff, you’ll regret it.

These clicks in easily and sits snug, it’s easy to swap and the quality is fantastic.

[Aluminum] Beautiful fit and finish as all Triad-Orbit products. Works alone as low stand for camera/light/mic. Mounts from above or below via attachment holes. Bottom includes thin rubber layer to provide isolation from desk, table, floor, wall, ceiling or whatever it is attached. I plan to buy more. Very adaptable attachment. I have a beautiful piece of tropical hardwood that I plan to attach to the bottom to provide more stability for my desk mic stand, and attached a Triad-Orbit IO-A1 Extendable Boom Arm, it fits perfectly on my desk. It looks great! I record Kirtan music where the musicians sit on the floor and it has proven very useful in this application. I have used it with a Wildtronics Pro Mini Parabolic Mic to make bird and ambiance field recordings in Costa Rica. It travels well.

[1.01 lb] The logic behind this product is pure simplicity. If you are working gigs regularly, it's easy to see how much time and fiddling you'll save by not having to thread on (and off) dozens of microphone clips per job. Plus, it will eliminate the possibility of damaging the fine 5/8-27 threads from accidental cross-threading. The hex-shaped pin prevents the microphone from spinning / loosening itself when attached horizontally to a boom arm. And Triad-Orbit was smart enough to make this work with any standard mic stand or boom -- not some proprietary hardware attachment. They provide adaptors for 3/8 European threaded stands, and a 1/4-20 threaded stud for cameras -- plus an extra set of set screws in case you lose any in the backstage darkness!

I was impressed with the high-quality packaging, and the couplers themselves seem to be manufactured to a high standard. I've never regretted buying high quality tools, and this is no exception. I'll be buying more.

[Black] If you care about your expensive microphones, then use these reliable quick mounts that actually work and stay seated.

Don’t get knock offs or cheap stuff, you’ll regret it.

These clicks in easily and sits snug, it’s easy to swap and the quality is fantastic.