Bad quality, scratches on the shaker and opens/closes barely.
Just received this bottle shaker. I'm going to be really careful with my review. First of all, I doubt the material is actually stainless steel. The bottom detachable part, the cup for powder, bends very easily when you squeeze it. Even the bottle itself bends easily. Don't take my word for it if it's actually stainless steel or not. Bottom line is, the material feels cheap. The inside of the bottom cup is made of very cheap plastic and is just glued together with the outer part. When you squeeze it, you can feel the plastic and the steel separating. Well, it's not BPA free that's for sure.