I don't know why most people buy them but I have an old computer desk and slides on a stand for those Keyboard was broken. I didn't measure every dimension, just measured to make sure they were at least the same length as the ones they replaced. I thought (hoped) I could get them to work when they got here. In a nutshell? They work, but I had to drill new holes in the steel brackets that the old ones were attached to. They're pretty nice and stylish for the price and seem like they'll last at least as long as the old ones. So I'm happy.
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