Philips Sonicare HX3826/24, 1 pc, Oral irrigators for Men, The Philips Sonicare HX3826/24 complementary interdental hygiene treatment will help you keep your teeth healthy and beautiful. Characteristics: makes cleaning the interdental spaces easier improves resistance to tartar removes plaque from the interdental spaces also suitable for people with sensitive teeth and gums How to use: Use according to the instructions included.