BlenderBottle Classic Loop Top Shaker Bottle, 28-ounce, Set of 2 - Colors WILL Vary Patented 316 surgical-grade stainless BlenderBall mixes ingredients with ease Updated features include loop carry top, ergonomic flip cap and tapered spout Perfect for protein shakes, smoothies, pancake batter, etc Measurement on the bottle is up to 20 Oz, total capacity is 28 Oz Dishwasher safe; do not use in microwave or with hot or warm liquids