This Interdental brush is designed for small interdental gaps to help remove plaque and tartar build up that a Toothbrush or Floss can't reach. The handle is made from sustainable FSC Beechwood, suitable for home composting. Every tree cut down is re-planted and excess material is used to heat up the factory. These medium BPA-free nylon bristles effectively access gaps in your teeth without damaging the gums. • 6 brushes ISO 0 / 0.4mm for narrow interdental gaps • Made from compostable Beechwood, from Switzerland • Medium BPA-free bristles, made in Germany • Replace each brush every week or until worn MATERIALS: Beechwood Handle^, Nylon Medium Bristles*. ^Compostable, *Z.T.L Recyclable. PACKAGING: Cardboard Box^*, Vegetable Ink^*. ^Widely Recyclable, *Compostable. DIRECTIONS: Brush the Interdental Brush bristles vertically between the gaps in your teeth. Do not brush horizontally as you may damage your gums. Repeat for all gaps.