7 years later I still use them reliably in my work. The best thing about these mini ball sockets is that they are compact, have good holding capacity and also come with an adapter sleeve to accept 1/4"-20 and 3/8"-16 mounts. These devices are attached to the PhotoFlex LiteDome XS base to which my Canon 580EX and PocketWizard are attached. It's a good weight, but I've attached this rig to a Manfrotto Super clamp, a light stand, and any number of attachment points and it worked surprisingly well, giving me the angle I needed to mount the light. I also used them with my Pocket Wizard FlexTT5 on a light stand to light up a wedding. Works well, never falls off and requires no maintenance. These are solid ball heads. I even use them as a last resort on my SLIK Sprint Mini tripod with an Arca Swiss compatible platform to easily hold my 5D Mark II and a small 17-40 lens. 0.7 years have passed and it's going well!
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