Standard reman brake caliper for M-B sedan that works
This went on a 2000 Mercedes-Benz S500 whose left rear brake caliper had seized up pretty badly. Brake calipers are supposed to squeeze the brake pads firmly against the rotor when you press the brake pedal. They're also supposed to release when you take your foot off of said pedal. These rebuilt calipers do that.
They're not going to win any beauty prizes. But you hook 'em up and bleed the brakes properly, and they do what you expect them to do. And the price was pretty good for what you got.