2. The working principle of shaking cup is the principle of thermal expansion and cold contraction, which is generally used to drink protein powder or milkshake.
3. The shaking cup is similar to a 55-degree cup. It is a high-tech product with rapidly changing warm water. It's a utility model patent. Because of its powerful functions, it instantly became popular on the Internet and became the new favorite of major e-commerce.
4. Just put the protein powder, warm water and spring ball into the cup at the same time, cover it and shake it directly, so that the protein powder and water can be evenly stirred under the action of the spring ball.