Teethers that are smooth all the way around are working with one texture. The Chime and Teethe teether has surface texture - ridges, bumps, or varied material that gives a baby different sensations to explore with their mouth and gums across the same object. For babies in the active mouthing and gumming stage, this variety keeps the teether interesting across repeated sessions rather than becoming familiar and ignored. The hanging design keeps it accessible from the main toy body - a baby who is batting at the Lion toy is in easy reach of the teether without needing to reposition. The chime responds to that same movement, so oral exploration and auditory feedback happen together.