Sustainable Interdental Brushes Our Interdental Brushes feature a plastic-free bamboo handle and are an environmentally friendly addition to your everyday dental care.  They allow you to clean the hard-to-get-at spaces between your teeth for yourself. You can choose from three ISO standard sizes. Size 0 has the smallest bristles, at 0.40 mm. Using the Interdental Brush together with a Bamboo Toothbrush means you not only protect your teeth and gums, but at the same time you protect the environment. Like all our products, our Interdental Brushes are, of course, water-neutral, vegan and fair trade. How to use Push the Interdental Brush carefully into the space between two teeth. Move the brush horizontally back and forth a few times as well as diagonally in an “X” movement alongside the teeth. Do this carefully. Always use the Interdental Brush without toothpaste, and preferably daily before brushing your teeth. Clean the brush under running water. You should replace the brush after 7 to 14 days. Disposal After use, HYDROPHIL Interdental Brushes belong to the household waste. Unfortunately, for reasons of hygiene, it is not yet possible to dispose of the bamboo handle as organic waste. Material Handle: 100% bamboo, bristles: metal wire and BPA-free nylon HYDROPHIL donate 10% of their profits to worldwide drinking water projects