I have a multitude of Chinese devices, some good luck, some HORRIBLE! 1- Amazon- fake CB6000-plastic- I-beam base ring. DO NOT BUY!!! The base ring will absolutely destroy your scrotum. Holy hell was that bastard miserable. 2- Amazon-fake CB6000- Steel- heavy but generally comfortable. Works well with the tube from that shitty plastic device. Lightens the load. (See avatar photo, other minor mods as well) 3-Amazon- fake Birdlocked- big. bulky. weird. Avoid. 4-Amazon - Rikers - plastic- fairly comfortable at first, until your skin in your pubic area gets pinched between the tube and the ring. Pinchy. Amazon-fake Holy Trainer- plastic. Overall very comfortable. No real complaints. Your mileage may vary. DhGate- multiple various steel devices. Flat locking tab with pin. All uncomfortable. Very short term wear. Amazon- Fake Evotion with pa - big, bulky, difficult to assemble and get on.
I have the fake holy trainer from Amazon and I really like it. Fits me perfectly and I get no burning sensation at the base of my balls when I get night time erections. Super light weight as well so it's easy to be active in. It also comes with 4 different base rings so should fit most.
The one thing I did was sand off the mold lines in the base ring, I'm happy otherwise. Wearing it now.