3 months & up. Cooling relief to soothe infants' gums. Multiple textures to massage gums and relieve teething pain. Chill in the refrigerator for extra relief. Flexible and safer EVA teether filled with sterilized water - Made without PVC and hormone-disrupting BPA, BPS, BPF, BFDGE, NOGE, or BADGE additives for your baby's health and safety.