Moso bamboo brush head, with stiff agave fiber (vegan) plant bristles.
Longevity: Each brush head can be used for 1-3 months or longer. Make sure to not submerge or soak the wooden parts in water. Hang to dry or place in a dry spot after using it.
Storage and Care: To reduce cracking, keep the bamboo parts dry and do not soak or submerge them in water. Cracking is normal for brushes over time. They are biodegradeable and won't last forever like plastic!