TANDEX FLEXI is a specially designed interdental brush with an ergonomic grip. The flexible grip makes it easy to reach even interdental spaces in the back of the mouth. TANDEX FLEXI gives an efficient and gentle treatment for both teeth and gums. With nine different sizes there are brushes to suit small interdental spaces or more complex bridge and implant spaces. Your dentist or hygienist will help you find a size that is right for you.