The Tepe Interdental Brush Is A Small, Easy-Grip Brush, Devised Especially For Cleaning The Gaps Between Your Teeth And Areas Below The Gum Line, Where A Regular Toothbrush Cannot Reach. The Core Of These Special Brushes Is A Metal Wire With A Plastic Coating And Filament Which Cover 98% Of The Wire. A Cylindrically Shaped Brush With A Rounded Loop Cleans Your Teeth Thoroughly And Gently. Each Pack Contains One Travel Cap That Can Be Used Also As A Handle Extension (You Just Need To Stick It On The End Of A Brush Handle).