A classic and clean way to add style to any outfit. Genuine slab of onyx is set on a sterling silver backing. Along with a set of 4 tuxedo studs, this set couldn't be more stylish. Engravable whale backing perfect for personalization. (There is an $8.00 charge for engraving up to 8 characters. Please allow for a 4-5 business day lead time on all engravables.)