Classic Loop Shaker Cup / Diet Shaker / Protein Shaker with Blenderball Black

product description 1. mixing protein shakes and smoothies features an easy-open/easy-close push-button flip cap with a sliding lock to prevent accidental opening 2. sleek and durable shaker cup offers plenty of room for supplements meal replacements or water 3. stainless steel shaker cups 4.Wide mouth makes it easy to add mix scoops and liquids and embossed markings measure both ounces and milliliters; rounded base for thorough mixing 5.Made of BPA- and phthalate-free stain and odor-resistant durable plastic; dishwasher safe; manufacturer’s limited lifetime