Mix it your way—just add your favorite supplement or hydration powder, drop in the blending ball, and give it a shake. The stainless steel whisk moves freely inside to mix everything to a smooth, lump-free consistency—perfect for protein, smoothies, fiber drinks, or our electrolyte powders. Made with 316 surgical-grade stainless steel, it won’t rust, chip, or peel—and the leak-proof lid keeps every shake mess-free, no matter where your day takes you.