There must be some really damn good engineering to allow this tray to hold the weight of 20 feet of tools... see the video after the images

see the video: https://www.luisonte.es/post/709807886711373824/d%C3%B3nde-est%C3%A1-en-el-caj%C3%B3n

Not as amazing, but I do find this new tool box system interesting and want to share it

and then, skip to 3:30 of this next video