Badger-Hair
Mother of pearl
Clean it with warm water
After use, place it with the bristles facing down to tap out excess water thus avoiding water stagnation inside the bristles
Never leave it under dry heat (for ex. the sun)
Keep it in a dry environment
Never leave it soaking in water
Use a toothbrush with soft brisles to avoid scratching the surface only for the mother of pearl part.
Avoid strong and abrasive detergents for the cleaning