304 Stainless Steel Cup with Visible Window

This 304 stainless steel protein mixing cup features a built-in visible window to easily check liquid levels while on the go. Designed for sports, gym, and fitness use, it’s perfect for mixing protein shakes, supplements, or other beverages. The durable stainless steel construction ensures long-lasting performance, while the clear measurement window helps track your intake. Lightweight and portable, it’s easy to carry in your gym bag or backpack. Ideal for athletes, fitness enthusiasts, or anyone needing a reliable shaker cup with a sleek design and practical function.