Mixer Cup The Cleanest Protein Bottle - Stainless Steel - Durable - Easy to Clean - Keeps Drinks Colder

I had trouble opening it and would constantly get stuck. It also leaked even after tightened. But it did keep my drink cold.

The WORST product I have ever purchased! Unfortunately, I bought two of them! The lid does not fit securely and liquid goes all over when you try to shake it up. When you finally get it on there, it is so tight that you can't get it off. I literally just threw mine in the trash!

Loveee this cup!