The Ozizo 28 fl oz (820 ml) Insulated Protein Shaker with Small Mouth and Spring is a high-quality shaker bottle designed to help you mix your protein powder with ease. The shaker features a small mouth opening, which helps prevent spillage and makes it easier to drink from. It also has a spring inside, which helps break up any clumps of protein powder that may be present, resulting in a smooth and consistent shake.

One of the key features of the Ozizo shaker is its insulation. The bottle is double-walled and vacuum-insulated, which helps keep your drink cold for hours, making it a great option for use at the gym, on hikes, or during other outdoor activities.

The shaker is made from high-quality materials, including BPA-free plastic and stainless steel, ensuring that it is both durable and safe to use. It is also easy to clean, with the parts being dishwasher safe.

Overall, the Ozizo 28 fl oz (820 ml) Insulated Protein Shaker with Small Mouth and Spring is a great choice for anyone looking for a high-quality shaker bottle that is easy to use, easy to clean, and keeps drinks cold for hours.