Used on a Hiace narrow standard roof. This is a set of 4. INNO IN-AD carrier base set. I am selling it because I am changing cars. All accessories are included (lock nuts included). There are scratches, dirt, and rust, but there is no problem with use. In the last image, there is a crack in the knob nut mounting part of only one. I don't think there will be any problems with installation, but if you are concerned, please refrain from purchasing. Please understand that this is a used item and check the images carefully before purchasing. Returns are not accepted after arrival to prevent replacement and trouble. Thank you for viewing.