The slim sonic brings a whole new dimension to sonic toothbrushes, merging fashion, ease of use, and best of all its slim size make it a perfect on-the-go companion. it"sconvenient and truly portable. fashion meets functions with a great big healthy smile. designed for the smart, on the go, fashion forward woman who appreciates value andproducts that deliver what they promise. slim is the first portablesonic toothbrush with a snap on vented mascara style cap. it stays clean and dry, making it perfect to carry in your purse, cosmetic case, backpack or briefcase. simplypress the button and 22,000 brush strokes per minute leave you with a clean, beautiful and healthy smile. slim sonic comes styled in an array of fashionablefinishes, so they can be discreetly displayed in style. includes 2 brush heads and isready to use right out of the package. brush heads are medium bristles.