Our 590ml shaker cup is crafted with precision, offering a well-measured capacity (note: measurements up to 415ml) for a seamless blending experience. Experience top-tier blending with our patented system, incorporating a 316 surgical-grade stainless steel BlenderBall wire whisk, exclusive to BlenderBottle brand shaker cups. The wide mouth simplifies the process, allowing easy addition of mix scoops and liquids. Embossed markings for both ounces and milliliters ensure accurate measurements, while the rounded base guarantees thorough mixing without clumps. The screw-on lid forms a leak-proof seal, safeguarding your blend's integrity. The secure flip cap, featuring SpoutGuard, maintains a clean mouthpiece. The wide loop top adds convenience for carrying or attaching keys on the go. Designed for hassle-free post-blend cleaning, our dishwasher-safe shaker cup adheres to health-conscious choices. Lead, BPA and phthalate-free, it ensures a worry-free blending experience.