Show your support for HDYO and raise awareness all while being the bright spot in the room! This set of four color-changing cups will make any occasion a bit brighter. They hold 17oz and are made of high quality BPA-free plastic and will change color before your eyes when cold liquid is poured in. We are selling these cups in sets of four, each set contains: 1 yellow (changes to green), 1 green (changes to blue), 1 orange (changes to red) and 1 pink (changes to purple). 1 – 10 sets can be ordered. For more than 10 contact: store@hdyo.org