This is a must have for active pets on the go while traveling, hiking or just on a walk. The collapsible cup with bottle holder is the perfect solution for thirsty or hungry dogs. Clips easily onto belt loops, leashes, backpacks, strollers or purses. Collapses to less than 1/2 inches thick. The bottle holder ring fits most standard water bottles. Dishwasher safe and antimicrobial/BPA free. Available in Green and 1 cup or 2 cup size.