[Safety] The cup body is made of food-grade tritan material, which is BPA-free. This material gives you the transparency of glass and the lightness of plastic. All the mouth contact materials of our blender meet food-grade safety standards and can be used safely. The sealing silicone has also been improved many times to effectively prevent liquid leakage. [Portable Leakproof] With a capacity of 22 ounces, this 11-ounce heavy bottle is perfect for carrying around, and it adopts a triple leak-proof design for comprehensive protection. The leak-proof sports cap is equipped with a flip cap and ergonomic parts, so there will be no leakage in the bag, and the touch design is comfortable. [Easy to Clean] Pour neutral detergent into our shaker cup or pour water into it, and then click the motor button to clean it by itself. Let the shaker vortex and rinse it clean. [Rechargeable and Powerful Motor] Simply connect the cup to any USB port with the included USB cable, no batteries are required, saving you money. Our electric shaker evenly mixes protein powder with a powerful motor power of 7000rpm, ensuring smooth mixing without lumps. [Perfect Gift] A cute cup, a lovely gift. Best gift for family, friends and colleagues who love coffee, hot chocolate, protein powder or other beverages that need to be stirred. Perfect gift for family morning coffee, office, travel, Father's Day, Mother's Day, Christmas, etc.