This is just a fantastic rattle, I cannot say enough good things about it. My son was a preemie and only 4 pounds when he came home and although he was small and this rattle on the larger side, miraculously within a month he was grasping this rattle. It really helped to develop his hand dexterity/hand eye coordination as well as develop his overall senses from very early on. He just loved this rattle and would stare at it in facination as well as shake it as he grew and became stronger. It remained his favorite "shake/noise maker" for quite a while. I highly recommend this rattle, it is just a wonderul first toy for fun and developement and very interesting to little babes!