Customers say this shaker cup features an appealing design with red and yellow colors that work well together. Many reviews mention its functionality for mixing drinks, while some note occasional leaking issues around the lid. The cup fits conveniently in car and gym drink holders. Reviews frequently highlight the sturdy construction and bold appearance. Several users appreciate the measurement markings on the side. While most find it effectively contains liquids, a few mention spills when shaking vigorously. The simple yet striking design receives consistent praise.