【No Shaking Accessories Needed】 The screw cap and leak-proof flip cap keep your shaker in place. The stainless steel quickly shakes the ball, breaks quickly, and enjoys the silky deliciousness. The sphere is made of stainless steel. Put it down when soaking the protein powder to help shake it without agglomeration. It can be taken out or not taken out during use.【This Shaker Bottle Can Be Used For】 Very good protein shakes such as protein powders shaken with milk, cold coffee, and other beverages or smoothies, mixed well. Do not use hot water that is above 70 ℃ / 158 ℉ in a shaker, hot liquid will cause air expansion, that will open the lid.【Precaution】1. Recommended temperature: -20~70°Because the design concept is a protein powder cup, the water temperature can reach up to about 50 degrees. High temperature and steam sterilization may cause deformation of the cup body;2. It is forbidden to enter the disinfection cabinet and microwave oven;3. Don't shake the heated water, the stirring of the high temperature liquid will increase the pressure in the cup, thereby opening the top of the cup lid to prevent the danger of accidental injury;4. Please close the lid firmly. The lid of the small cup must be pressed firmly until it clicks. The shaker cup is sealed with screws to prevent leakage, and will not leak when placed horizontally or upside down;5. Peculiar smell. Shaking the cup before the first use may have a little taste, because the cup is in a sealed environment for a long time, which is normal. 【Cleaning Method】Clean the entire cup body and lid with water or a neutral detergent and a cup brush. You can also soak the lid in warm water with a neutral detergent for 10 minutes, and then rinse it off with water.