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Review title: Advantage grade parts in a Professional grade package
Product review: This is the second time, from the second vendor (this time Amazon), where I have bought these sleeves only to find out that they are just the cheap "Advantage" grade sleeves packaged in the "Professional" grade boxes. They don't look like the picture, the sleeve itself is a straight smooth threaded shaft that has no guides for the clamps and a cheap coating that rusts quickly. If you want a good quality sleeve, buy from a brand like Moog, and if you just want cheap, get the Advantage version of this which is the same thing at less than half the price.
