Keep Your Childs Brusheez Electronic Toothbrush Working Optimally With These Replacement Brush Heads Designed In Colors That Coordinate With Your Existing Toothbrush Setour Replacements Come In A Convenient 2-Pack And Coordinate Perfectly With Your Childas Brusheeztoothbrush Product Details: Quick Twist-And-Click Installation Compact Design Is Perfect For Reaching Hard-To-Clean Areas Of The Mouth Quality Tested And Cpsia Approved For Safe, Effective Cleaning Durable Bristles Last Up To 3 Months Before Each Individual Brush Head Needs To Be Replaced Compatible With Brusheez Electronic Toothbrush Set For Luna The Llama Dentists Recommend That You Install A New Brush Head At Least Every 3 Months Or Sooner If Any Of The Following Situations Occur: Your Child Has Been Sick Your Brush Head Is Tattered And Worn Your Child Has Used The Toothbrush To Clean Something Other Than His Or Her Teeth