How Long Do Upper Stableloads Last?
Curious how long before the material gets down to the point of not being effective, kinda like a pencil eraser. I think that they have 2 year warranty. I've had mine about a year and there's proba...
Forum Discussion
sleepy wrote:
petroleum isn't good for rubber either...
Aren't they made from some kind of urethane material? I'm positive they're not made from rubber.
