I bought two large bottle electrics and they have been using them for many years. They are very durable, so I wonder why not buy a smaller size because many of the things I mix only require 12 ounces of water. I am very happy that they did what they were supposed to do and they persisted very well.
These are very good electric spray bottles. Just the right size. I have to replace the one that fell on the floor and broke, but I think they are quite strong. Except for cracking, the shaker bottle looks completely new after more than two years of use.
VOLTRX VortexBoost Electric Protein Shaker Bottle (Green)Product on sale
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VOLTRX VortexBoost Electric Protein Shaker Bottle (Gray)Product on sale
is just the electric bottle opener I am looking for. Being smaller means that I am forced to rest to replenish energy during exercise. This is not a bad thing because I can rest on my own. The electric water bottle did not leave me any lumps, but so far I have only used it before exercise, without protein powder. Even if it rolls in my sports bag, it will not leak. I also like rings.