The Nuby NanaNubs Massager is specifically designed to instill positive oral hygiene habits from the very start. Constructed from extra soft 100% silicone bristles with baby's comfort in mind, it provides 360 Degree of massaging action to delicate, tender gums. Sized for maximum effectiveness and easy enough for baby to hold, Nana Nubs also contributes to the development of fine motor skills while giving baby's sensitive teeth a gentle cleanse.   • 100% silicone bristles provide a gentle cleansing for emerging teeth • The Nana Nubs Massager is made of extra soft silicone with your baby's comfort in mind • Raised, offset surfaces that assist in the eruption of teeth by gently massaging infant's gums • Sized for maximum effectiveness and easy enough for baby to hold. Easy to clean/ top rack dishwasher safe • 3 Months +