Our bamboo hair brush is a zero waste alternative to hair brushes made with synthetic materials. It has a natural and luxurious feel, and functions exactly like conventional hair brushes. Brush pins are pure bamboo. Cushion base is natural rubber. Compostable packaging made from paper only. The bamboo hair brush is resistant to water damage. However, excessive water exposure should be avoided. If the brush becomes wet, we recommend using a towel to wipe it dry.