So far, these electric shaker bottles are great. The Shaker Bottle mixer has a net inserted into the top and a stirring ball. If you want, you can choose one or both. If you want to store some protein powder, snacks, or even pre-exercise supplements, the bottom compartment is really good.
I like the extra compartment on the Shaker Bottle mixer so that I can take my protein and milk to work and add protein to the milk when I want. These shakers are big and the lids are tight, so there is no water leakage! I threw away the Shaker Bottle mixer and now only use these! I definitely recommend!
I have no complaints. The price is very high and it is very durable. Even the thickest protein shake will shake live feces, but I just fry it with water and it is very clean.