It is virtually impossible to change blades from plain slicing to French fry cut or julienne without cutting yourself. The plastic pieces all come apart once you find the strength to separate the pieces. And impossible to get back into place. Worse there are no usable instructions. I watched the brief YouTube video 8 times before I finally figured it out. The is the absolute worst kitchen product I’ve ever had the misfortune to buy. It is incredibly dangerous. And because it’s so difficult to change the cutting blades, it’s basically useless unless you just stick to the configuration it comes out of the box with. Plus it is big and bulky and won’t fit into a drawer. I have to keep it on top of the counter.