refillable teether offers relief to inflamed, achy gums chill in the fridge (not the freezer!) fill with water and ice to provide cooling effect, no more toxic gels made from quality, non-toxic materials; food-grade silicone top and PP base suitable from 3 months and through the varied stages of the teething journey shaped and textured to provide massaging relief for front, middle and back gums lightweight and easy to grasp from any direction multi-sensory design dishwasher (top rack only). Do not microwave sterilise.