It has magnificent colors and a pleasant sound. Techhark Rattles and Teether toys help strengthen baby’s sensory and hand-eye coordination skills. It is made of Child-safe material. Each rattle has different shapes and tasks to assist in skills development. The colorful baby rattles are big enough which avoid mistake swallow, perfect size for little hands to grab it. Hours of fun with these rattles and teether. A useful and essential toys for parents to soothe the little baby.