Say goodbye to smelly plastic bottles. Traditional plastic shaker bottles can absorb odors and are hard to clean. This shaker is made from kitchengrade stainless steel, does not absorb odors or stains, and helps reduce plastic use and exposure to microplastics. Innovative shaker balls. The kit includes two mixing options to suit different occasions and needs. A silicone mixing ball provides quiet, efficient mixing that is easy to clean and resistant to damage. A plastic mixing ball offers quick, strong shaking. Both options ensure that all powdered ingredients mix smoothly with no lumps. Leakproof and shatterproof. The bottle features a safe, leakproof twiston lid that creates an airtight seal and prevents leakage. The lid is designed to resist bursting open if dropped, helping to prevent spills. If leakage occurs during use, tighten the cap fully to stop it. material and performance. Made from quality stainless steel, the bottle is strong and durable. It ships with two mixing balls so all powdered additions mix smoothly, making it ideal for protein shakes, protein drinks, and preworkout drinks. Use scenarios: After a workout at the gym, mix a protein shake or postworkout drink. On the go or at home for preworkout drinks or protein beverages. While traveling or commuting, use as a reliable shaker for meal replacement shakes.