Coconut fibre from the husk of the coconut.
Naturally anti-bacterial - so won't become smelly and mouldy.
Chemical free - safe for all the family.
Long Lasting, - bristles don't bend and flatten like nylon bristles do.
No Micro Plastics - natural plant fibre so it doesn't pollute waterways.
Biodegradable - at the end of it's life will break down naturally.