These are great slides for entertainment centers and anywhere you don’t want the cabinet doors wide open. When the doors are opened, they slide back in drawer slides and kept out of the way, so things such as audio and tv equipment can been easily used, then closed back up out of site when done.
The cheapest I’ve found these for are $40/set (set = 1 door), so let’s do half that plus shipping. All 4 sets for $80 plus $20 shipping to the US. You’ll actually get 5 sets, as one is open but I believe all parts are accounted for.
https://woodworker.com/12-8080-pocke...onKGs6lr0r7Ibs