They're good for a budget way to get wheels on your ...

They're good for a budget way to get wheels on your light stands. I have 22mm diameter light stands and the issue is, since they take up so much space inside of these wheels, the tightening knob doesn't screw in far enough to clear the wheels. So the knob bumps against the wheels. You can really tighten it to get it clear the wheels, but it puts a lot of pressure on the light stand and slot where the light stand sits in. Considering it's made of hard plastic, that much pressure might not be good down the road as I can see it breaking. I asked for shorter tightening knobs but they essentially said no.

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