SMOOTH, LUMP-FREE MIXING: This 600ml protein shaker bottle includes a durable stainless steel wire mixing ball that helps blend protein powder, BCAA, pre-workout, meal replacements and smoothies into a smooth, lump-free drink. The wide-mouth opening also makes it easy to add ingredients with less mess. LEAK-RESISTANT & SECURE DESIGN: This protein bottle is designed with a secure screw-top lid and flip cap, this protein shake bottle helps reduce leaks and spills when properly closed. Ideal for carrying protein shakes, smoothies and supplement drinks to the gym, office or while travelling. EASY TO CLEAN & DISHWASHER SAFE: The wide opening makes these protein shakers easy to fill and quick to clean after every use. This smoothie bottle is top-rack dishwasher safe, making it convenient for everyday protein shakes, smoothies and supplement drinks. BPA-FREE & DURABLE FOR DAILY USE: This protein shaker bottles is made from food-safe, BPA-free plastic, this reusable protein shaker is built for everyday use. Its durable construction makes it suitable for workouts, sports, daily hydration and mixing nutritional supplements. PORTABLE & GYM BAG FRIENDLY: Lightweight and compact, this gym bottles for men and women fits easily into most gym bags, backpacks and cup holders. This gym shaker bottle is a practical choice for workouts, the office, travel and everyday hydration. VERSATILE FOR SHAKES & SPORTS DRINKS: This shaker bottle for protein shakes is perfect for mixing whey protein, pre-workout, BCAA, meal replacements, smoothies and other nutritional drinks. This gym bottle is ideal for gym sessions, sports, fitness routines and everyday hydration.