I was looking for this kind of product to quickly and simply my protein doses without lumps ... This product nicely, I have no lumps, I can prepare my drink in seconds and is easy to clean so that it become almost too easy! 2 AAA batteries are enough to run the engine, plastic is very solid and well-made seal.
I regret that they did not put graduation for the liquid, it's really not convenient for traveling to know how much water ...
Otherwise it is a good product that I recommend for those who like me have a 3 shakers prepare daily without necessarily having much time for them or to clean afterwards!
