NFco Bio Toothbrush River Mint & Ivory Desert - Twin Pack Biodegradable Toothbrushes Handles made from non-GMO corn starch Soft nylon bristles BPA free Biodegradable packagingUse minimum pressure and brush in a circular motion Replace toothbrush every 8 weeks or earlier if worn. Replace after illness. Rinse thoroughly before & after use. Allow bristles to air dry. Sterilise often. Disposal Instructions:1. Break off toothbrush head.2. Discard thoughtfully, Nylon is recyclable. 3. Place the rest of the toothbrush into your compost. Typically takes 90 days to break down in a commercial compost. You have made the right choice - any way you dispose of this, you can be sure that these toothbrushes will not be land-fill for millions of years to come - unlike many toothbrushes in use today. Please note: The Jack N' Jill Bio Brush cannot be sterilized in boiling water or microwave.