The Oral-B Kids 3+ electric replacement toothbrush heads give kids the fun of Disney The Lion King with the gentle effective clean of a dentists-recommended Oral-B toothbrush. The extra soft bristles and small round head are specifically designed for kids and they are compatible with all the Oral-B Kids electric toothbrushes. Oral-B Pro Kids 3+ Deeper cleaning Oral-B Pro Kids toothbrush head cleans deeper to fight against cavities vs. a regular manual toothbrush. Kid-sized extra soft brush head The small kid-sized brush head includes the softest bristles Oral-B has ever made for milk teeth. They act like tiny cushions to prevent harshness yet give an excellent clean. The round brush head gently surrounds each tooth as it cleans. Hold the brush in place for a few seconds on each tooth end let it do all the work. Replace your brush head every three months Replace your brush head every three months Dentists recommend replacing brush heads every three months to keep an effective clean. When bristles are splayed or faded it is time to change. Guaranteed fit The Oral-B Pro Kids brush head is guaranteed fit with Oral-B handles (except Pulsonic & iO handles). #1 Most recommended brand by dentists worldwide* Oral-B is the #1 dentist recommended brand worldwide.* All our toothbrush designs are inspired by dentists to give your kid a gentle and effective clean at every age of their development. *Based on surveys conducted between October 2020 and May 2022 and confirmed to be statistically significant at a 99% confidence level by Radius Illumination September 2022