RELIEVES TEETHING SYMPTOMS IN BABIES 2+ MONTHS: MAM Mini Cooler teether massages and cools baby's sore gums to provide relief from baby teething symptoms.COOLING MECHANISM SOOTHES SORE GUMS: Filled with purified water that can be chilled in the refrigerator to maintain a cooling effect on sensitive gumsSTIMULATES SENSORY DEVELOPMENT: Variety of structures and textures on this teething toy work to stimulate baby's sense of touch and foster coordination skills.BONUS CLIP INCLUDED WITH TEETHER: Includes one bonus clip that easily attaches to baby's clothing, ensuring teething toys remain clean and secure.