Just got my new lever 13mm powerlifting belt. Pretty sweet in design, and putting it on and off is quick and painless. The problem is that in order to adjust it, you need a screw driver. I have also heard of levers breaking during squatting or deadlifting and I asked around. The typical reasons are:
They are constantly treated badly like being thrown onto the floor etc.
People rush to put on the lever and ends up creating a stress point.
The lever gets hit repeatedly during workout.
Rusty/dirty levers.
Anyway, if the lever do break I have a 10mm belt. I think I might rotate my 10mm and 13mm belt. The 13mm is really stiff and needs to be broken into. It seems to dig right into hip which is an annoyance.
I also received a pair of RDCrain's Olympic Tube Collars. It is made out of solid steel, and weight about 5.5 each, which is competition weight. This thing will definately last forever.