The GaGaGu rattle activates hearing - the sound of the rattles is soft and pleasant (not too loud). The rattle has contrasting colors and patterns that stimulate the baby's vision. Plush animal heads - monkeys and pandas - encourage children to catch them and support the practice of so-called fine motor skills (finger and hand movements) and the learning of motor coordination. The rattle can be attached to the wrist (with special velcro, no sharp hairs, easy to turn on) and used as a regular rattle, because the strap is made of soft material, allowing the child to comfortably grasp the whole toy. The toy is very light and handy, easy to store, ideal for a walk or trip. Product information (in points):• contrasting colors and patterns - stimulate the child's vision• pleasant (not too loud) sound - activates hearing• plush elements - tiger and dog - encourage grasping, which supports fine motor skills (finger and hand movements)