Protein shake flasks are unique among shake flasks, and they have a built-in battery-operated stirrer. The super blending function will ensure that all powdered additives are blended smoothly and completely without fear of lumps no longer dissolving in these beverages.
The bottle body is made of food grade material and is BPA free. It offers the clarity of glass and the lightness of plastic, shatter-resistant and odor-resistant, so you don't have to worry about any lingering odors.
Thanks to innovative cold-flow technology, this shaker makes a lump-free protein shake in seconds. The battery capacity is high, three times that of most products on the market.
