Instill Dental Hygiene from the Beginning Nuby s NanaNubs Banana Massaging Toothbrush is the easy-to-use (and downright adorable) tool for cleaning baby gums and teeth. The NanaNubs toothbrush is made of 100% soft silicone which is gentle on tender gums. The top of the banana has pliable bristles to massage and clean gums and newly emerged teeth. The peeled banana design is easy for parents to hold and maneuver. As a bonus the NanaNubs toothbrush is easy to clean! Simply pop it in the top rack of your dishwasher between cleanings. Don t let this cute banana fool you: it means clean for your baby s teeth and gums!