Use one of them daily. Great shakers!
Have a few of them love em.
It does what it's supposed to do.
Really Enjoying the Suppz Cup! Sturdy, easy to open, But doesn't open on its own. I like the measurements on the sides, would be nice if they were colored, but at least they are present.
Good for taking to the gym and while doing my cardio. The lid is secured really well so I have yet to have any leakage. Even when I shake it pretty hard to mix up my protein powder, the lid does its job. Great product.