This 24 oz color-changing polypropylene tumbler makes a memorable addition to any promotional display. As a cold beverage is poured or ice is added, this tumbler reacts by shifting color, creating a fun and eye-catching experience for guests. This product includes a matching lid and straw and is made from BPA-free materials for everyday confidence. With its generous capacity, this tumbler is well suited for events, giveaways, or casual use. This interactive color change adds visual interest that draws attention and sparks conversation.