Seriously, this is the best electric shaker bottle. You can buy it in the gym, or just as a variety of cheap blender bottles as ordinary water bottles. I have two other white blender bottles, which are unbeatable. So far, this is my favorite bunch. This design is not only very effective when mixing protein or anything added to the milkshake, but I think it is the best looking milkshake on the market. The eddy current design looks cool and makes a satisfying sound when shaken. The material is actually high-quality plastic used in advertising, and it has no smell. This is one of the other small blender bottles I have. I also contacted them to support some of the problems I encountered, and they were all very good. I would recommend this bottle to anyone looking for a high-quality and excellent Shaker Bottle.