The CoolBite™ teether by Nûby™ provides textured surfaces for your baby to bite and teethe on safely during their teething periods. The bright characters are easy for baby to hold and sized for maximum effectiveness as a teether and soother. This Nûby™ teether, filled with pûrICE™, can be placed in the refrigerator. pûrICE™ stays colder longer than water filled teethers!