How can you teach color recognition, stacking, nesting, sorting, and counting all with one toy? Answer: mixing, matching, nesting, and stacking! It’s the perfect toy for a busy and curious toddler. It comes with 5 cups, 15 corresponding color balls, and a wooden scooper to make counting super fun. They nest inside one another or can stack when turned upside down. Best of all, they come with a carrying bag for easy transport.