The IcyBite teether by Nuby provides a cool textured surface for baby to bite and teethe on during teething periods. The cool resilient surface soothes and stimulates sore gums safely. Engineered with raised offset surfaces that assist in the eruption of teeth by gently massaging infant's gums. Colorful shapes are easy for baby to hold and sized for maximum effectiveness as a teether and soother. This Nuby teether is filled with non-toxic purIce, can be placed in the freezer and will remain soft to safely soothe baby's sore gums. purIce stays colder longer than water filled teethers.