The MUSCLE HORN Shaker Bottle is the optimal accessory for sport, fitness, and a nutritious diet. Action rod mixer, leak proof, twist lock cap, extra wide mouth spout, lightweight and portable, 800 ML capacity, an ideal multipurpose device for using in everyday life, during travel, or in the kitchen. Our design has been optimized to ensure that no matter how the cup is used, it will not leak. Each shaker bottle comes with mixing ball to make the mixing process incredibly easy and improves the flavor of the shake. It mixes well and you’re not left with clumps or “settled” powder at the bottom.