Mammouth tusks ivory *
Stainless Steel
Never leave under direct heat (sun for example)
Keep in a dry environment
Never use dishwasher
Wash it with warm water and delicate soap
Never leave the item soaking in water
Avoid chemicals, strong detergents, abrasive cleaning materials or scrubbers
* The trade of ivory coming from mammoth tusks is legal even very rare since mammoths have been extinct for thousands of years.