Ring holder as a gift when buying a case for iphone

Found such an offer from the seller RCD Group Co., Ltd. When buying a case for iphone, give a ring holder as a gift.

Found an offer on two pages.
First one. $ 3.99 Case
The second one. $ 3.24 Case
The ring itself, in principle, is quite a convenient thing.
Did a review on like that. He carried it for several years.
Go to the store