Hanging High Contrast Sensory Activity toy for Baby. Includes easy pram/cot attachment, wind bell, textured surfaces and tags for tactile stimulation. Early exposure to contrasting colours both stimulates and encourages a child's visual growth. When a baby is born, the back layer of the eye known as the retina isn't fully developed, just like the brain. In order for both to grow and reach maturity, it's important to stimulate your baby's vision.