Create some mind altering excitement at your next activity or event with these cool color changing cups! Made of high quality recycled polypropylene plastic, these 16 ounce capacity cups features a secure angled lid with an easy sip opening. Add a hot beverage and watch the color change. Great for coffee, tea, water, soft drinks and more. Lids and cups are stackable for easy storage. Available in assorted colors. Add your school, sports team, organizational or company logo or message to customize.