Quite usable, but .... However, the processing is not really good. With a slider, it is extremely important that this "smooth" running. Unfortunately, that's not really the case. The guide rail was full of degrees from the ground and thus not really plan. This affects the slider with unsightly Mikroruklern from which one looks at the photographs. I have due to the low price to keep the slider anyway and reworked it slightly, sanded and treated with a lubricating grease. Now it is quite usable.
Conclusion: Anyone looking for a cheap slider, this is not needed as often and is willing to rework something that is right here.
