Clean thundereggs using warm soapy water and a soft brush. Although it has a high hardness, thundereggs can still be scratched or damaged by gemstones with a higher hardness, as well as other materials. Avoid using household chemicals when cleaning thundereggs.  Polish with a soft cloth or chamois. 

If you are unhappy with your purchase when you receive it, you may return it within 2 weeks, provided necklace has not been worn.  Return shipping will be at Buyer's expense.  I will provide a full refund, minus shipping charges.  Please email me if you would like to return it.  

I ship anywhere in the United States.  International shipping is unavailable at this time.  I use USPS Priority Mail using a Flat Rate Small Box for all shipments.  I can easily fit multiple gift boxes with the necklaces in one.  The Flat Rate Small Box price is $7.20 to anywhere in the U.S.  It typically gets to its destination between 1-3 days.