TLDR - lid, ,blade, and cup are not secure to each other. Each piece easily falls out and a hazard for kitchen cuts. It slit my fingers super easily when I was just trying to lock it in place. Turns out, there wasn’t. So everything slipped and slit me. I’m bleeding.there are 3 components: the button lid topper, the middle blade, and the bottom cup.one would expect the lid and blade to lock in place, like any other safe food processor from target or Walmart. .However, this was amazon. It’s a mystery design sometimes. .The lid just goes on. It is easy to take on and off. There is no lock feature.This means, the lid can be taken out by a baby.The blade can fall out of the cup and slice a baby’s head if it for any reason, knocked this device down the edge of a table.The blade is small enough to severely cup up a baby’s hand. IT is very small, and fits well in a baby/toddler’s hand.Otherwise, for any very careful and attentive user, the device (without a locking feature for the blade, or lid, to contain the ingredients and blade within the cup) functions just fine because it uses air to spin the blade to cup the ingredients.To operate, we place the blade into cup (match circle centers)Place the ingredients you want to chop insideTo slice, dice, mince, align the topper hexagon to the blade’s hexagon tube.Finally, press down from the top and it will spin the blade.Ideally, we would have a twist to secure the blade in the cup, a twist to secure the lid onto the cupNot .. an easily lift able lid and blade that can easily cause injury, and lawsuit for poor preventable design..