Review on 🥤 Stainless Steel Ball Blender Technology - Classic Protein Shaker Bottle by Nutrition Outlet by Daniel Mettler

Regardless of what the cup is for, I bought it primarily for energy drink mixes. That's why he does his job and does it well. You get what you pay for - the bottle seems cheap and doesn't have a proper cap, just a friction fit, but over the few days I use it and shake it, it holds up and mixes the liquid in it well. If changes needed to be made I would suggest two options: make a spherical part and add a gasket or seal of some kind around the mouthpiece cap. So far I'm enjoying it and I hope it stays that way for the coming months.