The Parker Lane Color Changing Tumbler 2-Pack includes two 22-oz double wall insulated tumblers that change color when filled with cold beverages. The set comes with two tumblers and four reusable Tritan straws, offered in two color combinations: a blue set where tumblers transition from glacier (white) to sky and from sky to ocean, and a pink set where tumblers transition from glacier (white) to orchid and from orchid to violet.

Both tumblers are car cup-holder friendly and BPA free. The color-changing effect is activated best by iced beverages. External ambient temperatures may affect the starting color of the tumbler; use warm water to return the tumbler to its original starting color. Hand wash only; do not microwave.