With vTech Stack & Discover Rings you could stack and learn with the monkey. Using the 5 colorful textured rings your kid could learn the colors. Place the rings on the wobbling base to discover fun sounds, interactive phrases and sing along songs. Press the cute and friendly monkey character to learn colors, numbers, and shapes and to hear encouraging phrases that will inspire action and reaction and encourage repetitive play. vTech Stack & Discover Rings includes 4 sing-along songs and 10 upbeat melodies.