For sale are (2) Linear Guide Rails and (4) Slides. One set of rails is approximately 28.5" long and the other is 23". You pick which set of (2) rails you want. Same for slides, pick the set of (4) Linear Bearing Block Guides you want. Came out of very old industrial equipment so it is better than the new junk on Amazon. I was going to build a 3d mill but have too many projects.
I also might have a set of 39" rails that need to be degreased.