Convenient to add: Wide mouth makes this shaker bottle easy to add mix scoops and liquids, and embossed markings measure both ounces and milliliters. You will receive shaker cups to support your healthy lifestyle anytime, anywhere. Healthy material: BPA and phthalate-free, dishwasher safe; made from ABS food-grade plastic material. Stainless steel shaker ball: Each shaker bottle comes with a stainless steel mixing ball to help eliminate clumps and ensure smooth shakes. Leak-proof design: Spiral lid creates a secure, leak-resistant seal to help prevent spills. Rounded base allows for thorough mixing. Warm reminder: When adding protein powder or other ingredients, do not fill beyond the recommended level. Overfilling may cause overflow when using the mixing ball. Anti-slip cup body: Features anti-slip strips on both sides for a secure grip. The frosted texture resists water stains and fingerprints for a clean appearance.