The cylinder locks are designed aluminum boxes for Enders and really easy to install. However, the flat sides had little bearing edges and thus I was able to use only one of the 4 ordered locks in exactly a fit at one of my two aluminum boxes. After I sanded a little material at all locks fit the locks precisely and without wobbling in the holes provided. Everything to aggravate great and reasonably safe solution to the Zuriff to the content in all. The need for reworking costs but still 1 star.
