I decided to buy this necklace to wear with a pair of earrings I have that were made up of links similar to these.

When I received it I was surprised at how lightweight and delicate it was. I also was unsure that it was a full 20 inches, but after measuring I can confirm that it is. I feel it can be worn casual with jeans and a t-shirt or dress it up with earrings or a bracelet. For the price I paid (Just a tad more than $10) I am happy with it and will add it to my jewelry case.

If you prefer a different length it does come in several:
<a data-hook="product-link-linked" class="a-link-normal" href="/Sterling-Silver-Flat-Circle-Link-Chain-Necklace-16/dp/B00200K9CM/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Sterling Silver Flat Circle-Link Chain Necklace, 16"</a>
<a data-hook="product-link-linked" class="a-link-normal" href="/Sterling-Silver-Flat-Circle-Link-Chain-Necklace-18/dp/B00200K9CW/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Sterling Silver Flat Circle-Link Chain Necklace, 18"</a>
<a data-hook="product-link-linked" class="a-link-normal" href="/Sterling-Silver-Flat-Circle-Link-Chain-Necklace-24/dp/B00200K9DG/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Sterling Silver Flat Circle-Link Chain Necklace, 24"</a>

*A tip on getting a matching bracelet @ a lower cost.  Measure your wrist and buy a necklace that it 2-3 times larger.  Then wrap it around your wrist a couple times before securing.