This is the third order I have placed , and the worst batch I have received. The carriages do not slide at all because the rail is very VERY dirty. It is not even machine oil, it is a paste like gunk. As a result the carriages block and grind all the length of the rail. This time, instead of plugs to stop the rails from sliding off (1st order), or nothing (2nd order), Kande has provided small pieces of plastic rail. I assume to easily slide the carriage off so they can be cleaned. The end of the rails have burrs as well, which need to be filed off before the carriage can slide off. It is unfortunate that the more I placed orders, the worse it got. But overall, of the 5 rails I ordered I am satisfied enough. Do not expect ready to go rails. A lot of time in cleaning is needed.
much less protective bubble wrap than my first order. packaging box was damaged during transport but rails seem ok. The very annoying thing is that this time there are no plastic carriage stops on them which will make installation harder than it should be. First order they were present. The three I bought now are or much less factory grease, or have pre load because they do not fall on their own gravity as far as I can tell in the packaging. Compared to my first order, I am a bit disappointed.