The 3 Sets of Silicone Stackable Cups greatly contribute to the motor development as well as the hand-eye coordination of infant. This first exploration for babies will help them discover the world around them, and it is through their senses that they will learn about shapes, colors and textures. The sets are fun and colorful, offering cognitive stimulation through the senses. They fit in small hands and are easy to grip, so that your little one can grasp, squeeze, pinch, throw, and pick, which are some important motions in the motor skills development in child. This toy is safe and comfortable for the baby, who can put them in their mouth without danger.