This is the second time I have bought replacement pads from this list. The first time I got yellow pads that slide. This time I got black spacers that just fit over the blue plastic. Irwin did not change the part number but added "_REV1" to the UPC. They fit but are not as strong as the yellow pads. I'm deducting a star because the setup isn't as good as it used to be. If you have a newer line of these clamps they are for the light duty line.