The Vitamix 20oz Travel To-Go Tumbler & Lid Smoothie Container is a set of two replacement cups made of durable plastic. These clear and black cups have a capacity of 20 oz and feature a locking lid for easy transport. The dishwasher-safe parts make it convenient to clean, and the tumbler design is portable, making it ideal for smoothie enthusiasts on the go. Whether you're blending smoothies at home or on the move, these Vitamix cups are a practical addition to your kitchen.