Straws in Assorted Designs. With each flourishing in more colors than the next, the set makes for a great addition to liven up the daily routine. Featuring tropical birds surrounded by alluring plants and flowers on transparent containers. The travel cups are made of a durable BPA free hard plastic and are double walled for proper insulation. For long lasting quality, it is recommended to hand wash the set. Cut down on disposable cups and straws and bring these tumblers along for daily commutes, adventurous road trips, or serene hikes!